-------------------------------------------
New Insights Into What Fruit Fly Sex Is Like - Duration: 5:53.
[♪INTRO]
Animals need to like sex to keep doing it and having babies, but scientists aren't
always clear on which aspect of sex is compelling for them.
Like, with male fruit flies, maybe it was something about cozying up to a female fly,
or finding a really great grapefruit... maybe it was something else.
And in a study published on Thursday in Current Biology, Israeli neuroscientists found out
that male fruit flies aren't all that different from humans, because they like to ejaculate, too.
For their experiments, they had to get the male fly to release his sperm without a female
in the picture.
Normally, this would be a hard nut to crack.
But oddly enough, scientists know which neurons trigger ejaculation in male flies.
And because of a technique called optogenetics, they can genetically engineer certain neurons
to turn on in response to light.
This means researchers can make flies that ejaculate whenever the researchers want, just
by flashing a light — in this case, a red light, which can pass through a fruit fly's
exoskeleton and hit those modified neurons.
The future is now.
The team put these engineered flies into a box with a red light on one side, and then
looked to see whether they hung out more in that space.
If they did, it was a sign that they found it rewarding.
And did the flies ever!
They strongly preferred the, well, red light district.
But females and unmodified males wandered around and didn't prefer any particular area.
Activating the ejaculation neurons a lot also increased the amount of a signaling molecule
called neuropeptide F, which normally rises after lots of fly sex.
So that's another sign that the researchers are tapping into a natural reward circuit.
The team still can't say for sure whether pleasure comes from activating the ejaculation
neurons, or from other signals related to releasing seminal fluid.
But it's clear that flies like it.
So… why…?
Well, one reason why researchers are so interested in fly sex is because understanding basic
reward systems could help us better understand addiction.
In fact, another clue that the flies like to ejaculate is because when they do, they
drink less alcohol.
Flies normally prefer alcohol-laced food to a normal version, but that's not the case
after a few blasts of red light.
In humans, it's bound to be more complicated than that.
But researchers hope that they can use flies to dig deeper into the reward mechanisms at
play when someone abuses or is at a higher risk of abusing a drug.
So, one day, maybe a non-alcoholic toast to fly ejaculation will be in order.
Our next bit of news also has to do with insect fluids, but… less fun.
Because, instead of fruit fly sex, we're talking about ant suicide.
This week, an international team of scientists reported the discovery of a new ant species
in the journal ZooKeys.
This ant blows itself up to fling a toxic, sticky yellow goo onto its attackers, and
defend its territory.
Which…
I mean, kudos.
That's amazing!
I'm glad that I don't have that particular defense mechanism, though.
For obvious reasons, self-sacrificing by ripping your body apart, or what biologists call autothysis,
isn't a go-to defense mechanism for organisms—sharper teeth, stronger claws, speedier legs:
more typical.
But a few social insects, including some termites and ants, go this rather explosive route for
the greater good of the colony.
Now, to be fair, entomologists have known about this ant for a while.
It's one of more than a dozen exploding ants in Southeast Asia that do some version
of this bizarre defense mechanism, and was nicknamed 'yellow goo' or just 'YG'
in earlier papers.
These ants evolved extra-large chambers in their lower abdomen to hold their lethal goo.
When attacked, they squeeze their abdomen hard enough to rupture, and squirt it all
over the enemy's face.
This gunk is so sticky that it binds the two insects together permanently.
It can easily take out larger insects, or even multiple others at a time, which may
explain its success.
And, according to these researchers, it has a spice-like smell.
They did not go into how it tastes, but now I'm curious.
But even though we knew about exploding ants, scientists hadn't realized that this insect
was unique enough to be its own species — until now.
The researchers used a few tools to figure that out, including genetics, field observations,
and a detailed study of the physical appearance of lots of ants in Borneo, a big island in
the southwestern Pacific ocean.
Classifying ants can be especially tricky because the same species can have wildly different
social castes.
This explosiveness, for instance, only applies to smaller female workers.
The larger workers, or soldiers, actually have huge heads that are flattened in the
front, which they can kind of use to barricade their nests.
Males and queens also look totally different, and also don't explode.
The team studied one particular colony of yellow goo ants in the rainforest, which they
estimated included thousands of individuals across multiple nests.
In fact, it spread out over at least 2500 square meters, or more than half an acre,
and stretched as high as 60 meters up into the trees.
And really, the main action is even farther away.
Previous studies of exploding ants have found that, weirdly, the ants aren't sacrificing
themselves to protect their nests.
Instead, they're protecting their foraging territory.
This makes the ants outliers among kamikaze insects, too.
Usually a more direct threat to the colony justifies the suicide, not just defending
food sources.
In any event, this team of researchers is on the cusp of identifying even more new species,
and there are plenty more exploding ants — and fluids — to discover.
A huge thank-you to SR Foxley, our Patreon President of Space for supporting this not
particularly brand-safe episode of SciShow.
What will we do without you?
If you want to support free science content and get fun rewards like your name on screen
with beautiful informative graphics that you helped create with your contribution, you
can go to patreon.com/scishow.
[♪OUTRO]
-------------------------------------------
AL BANO E ROMINA SONO TORNATI INSIEME? "Che bello ritrovarci tutti", colpo basso alla Lecciso - Duration: 5:12.
For more infomation >> AL BANO E ROMINA SONO TORNATI INSIEME? "Che bello ritrovarci tutti", colpo basso alla Lecciso - Duration: 5:12. -------------------------------------------
Anna Tatangelo e Stash, Gigi D'Alessio è "vicino" a Loredana Lecciso? | M.C.G.S - Duration: 15:20.
For more infomation >> Anna Tatangelo e Stash, Gigi D'Alessio è "vicino" a Loredana Lecciso? | M.C.G.S - Duration: 15:20. -------------------------------------------
Cristiano Malgioglio attacca duramente alcuni concorrenti del GF 15 | M.C.G.S - Duration: 3:53.
For more infomation >> Cristiano Malgioglio attacca duramente alcuni concorrenti del GF 15 | M.C.G.S - Duration: 3:53. -------------------------------------------
셀레브 임상훈 대표 욕설 논란. 대중은 큰 충격에 빠졌다.| Seo-yeon97 - Duration: 5:15.
For more infomation >> 셀레브 임상훈 대표 욕설 논란. 대중은 큰 충격에 빠졌다.| Seo-yeon97 - Duration: 5:15. -------------------------------------------
Volkswagen up! 1.0 60PK Move up! - Duration: 1:08.
For more infomation >> Volkswagen up! 1.0 60PK Move up! - Duration: 1:08. -------------------------------------------
Nissan X-Trail - Duration: 1:07.
For more infomation >> Nissan X-Trail - Duration: 1:07. -------------------------------------------
Kia Rio 1.0 T-GDI EcoDynamics 120pk 5DRS - Duration: 1:06.
For more infomation >> Kia Rio 1.0 T-GDI EcoDynamics 120pk 5DRS - Duration: 1:06. -------------------------------------------
Volkswagen Transporter Kombi 2.0 TDI 84pk prijs is ex btw/bpm!!! - Duration: 0:52.
For more infomation >> Volkswagen Transporter Kombi 2.0 TDI 84pk prijs is ex btw/bpm!!! - Duration: 0:52. -------------------------------------------
Watch The Resident On FOX ...
For more infomation >> Watch The Resident On FOX ...-------------------------------------------
[엠스플 현장] '최고 148km/h' 루키 김진욱의 인상적 데뷔전 | 뉴스 24/24 - Duration: 5:47.
For more infomation >> [엠스플 현장] '최고 148km/h' 루키 김진욱의 인상적 데뷔전 | 뉴스 24/24 - Duration: 5:47. -------------------------------------------
HOW TO GO 400+ Km/h In Rules Of Survival - Duration: 1:20.
Okay, so today. I'm gonna show you how to go really fast on the bike so what you want to do is like yeah
Hop it over like that
Then you need your buddy to flip you over
Okay, it takes a while you got a crash it to a rock and yeah should work
Just takes a while using the bicycle though. You can only get the bicycle I think from Echo Valley
Yeah
Watch this watch
Okay now now work. See you go really fast
The bike only stops going fast
Unless you like hit something and you the bike like you hit it like a fence or something or a tree or?
if the bike like flips over
Like this right now
Yeah
Hurry try this before it gets patched. It's really fun. You need at least two people do this
You
-------------------------------------------
Christchurch Lord of the Rings Tour – New Zealand's Biggest Gap Year – BackpackerGuide.NZ - Duration: 6:20.
For more infomation >> Christchurch Lord of the Rings Tour – New Zealand's Biggest Gap Year – BackpackerGuide.NZ - Duration: 6:20. -------------------------------------------
Wegen Angelina: Anwälte raten Brad von neuer Freundin ab! - Duration: 2:53.
For more infomation >> Wegen Angelina: Anwälte raten Brad von neuer Freundin ab! - Duration: 2:53. -------------------------------------------
셀레브 임상훈 대표 욕설 논란. 대중은 큰 충격에 빠졌다.| Show-24h - Duration: 5:15.
For more infomation >> 셀레브 임상훈 대표 욕설 논란. 대중은 큰 충격에 빠졌다.| Show-24h - Duration: 5:15. -------------------------------------------
J. Cole - 1985 (K.O.D ALBUM) (Intro to The Fall Off) - Duration: 3:51.
jcole 1985
-------------------------------------------
New Insights Into What Fruit Fly Sex Is Like - Duration: 5:53.[♪INTRO]
Animals need to like sex to keep doing it and having babies, but scientists aren't
always clear on which aspect of sex is compelling for them.
Like, with male fruit flies, maybe it was something about cozying up to a female fly,
or finding a really great grapefruit... maybe it was something else.
And in a study published on Thursday in Current Biology, Israeli neuroscientists found out
that male fruit flies aren't all that different from humans, because they like to ejaculate, too.
For their experiments, they had to get the male fly to release his sperm without a female
in the picture.
Normally, this would be a hard nut to crack.
But oddly enough, scientists know which neurons trigger ejaculation in male flies.
And because of a technique called optogenetics, they can genetically engineer certain neurons
to turn on in response to light.
This means researchers can make flies that ejaculate whenever the researchers want, just
by flashing a light — in this case, a red light, which can pass through a fruit fly's
exoskeleton and hit those modified neurons.
The future is now.
The team put these engineered flies into a box with a red light on one side, and then
looked to see whether they hung out more in that space.
If they did, it was a sign that they found it rewarding.
And did the flies ever!
They strongly preferred the, well, red light district.
But females and unmodified males wandered around and didn't prefer any particular area.
Activating the ejaculation neurons a lot also increased the amount of a signaling molecule
called neuropeptide F, which normally rises after lots of fly sex.
So that's another sign that the researchers are tapping into a natural reward circuit.
The team still can't say for sure whether pleasure comes from activating the ejaculation
neurons, or from other signals related to releasing seminal fluid.
But it's clear that flies like it.
So… why…?
Well, one reason why researchers are so interested in fly sex is because understanding basic
reward systems could help us better understand addiction.
In fact, another clue that the flies like to ejaculate is because when they do, they
drink less alcohol.
Flies normally prefer alcohol-laced food to a normal version, but that's not the case
after a few blasts of red light.
In humans, it's bound to be more complicated than that.
But researchers hope that they can use flies to dig deeper into the reward mechanisms at
play when someone abuses or is at a higher risk of abusing a drug.
So, one day, maybe a non-alcoholic toast to fly ejaculation will be in order.
Our next bit of news also has to do with insect fluids, but… less fun.
Because, instead of fruit fly sex, we're talking about ant suicide.
This week, an international team of scientists reported the discovery of a new ant species
in the journal ZooKeys.
This ant blows itself up to fling a toxic, sticky yellow goo onto its attackers, and
defend its territory.
Which…
I mean, kudos.
That's amazing!
I'm glad that I don't have that particular defense mechanism, though.
For obvious reasons, self-sacrificing by ripping your body apart, or what biologists call autothysis,
isn't a go-to defense mechanism for organisms—sharper teeth, stronger claws, speedier legs:
more typical.
But a few social insects, including some termites and ants, go this rather explosive route for
the greater good of the colony.
Now, to be fair, entomologists have known about this ant for a while.
It's one of more than a dozen exploding ants in Southeast Asia that do some version
of this bizarre defense mechanism, and was nicknamed 'yellow goo' or just 'YG'
in earlier papers.
These ants evolved extra-large chambers in their lower abdomen to hold their lethal goo.
When attacked, they squeeze their abdomen hard enough to rupture, and squirt it all
over the enemy's face.
This gunk is so sticky that it binds the two insects together permanently.
It can easily take out larger insects, or even multiple others at a time, which may
explain its success.
And, according to these researchers, it has a spice-like smell.
They did not go into how it tastes, but now I'm curious.
But even though we knew about exploding ants, scientists hadn't realized that this insect
was unique enough to be its own species — until now.
The researchers used a few tools to figure that out, including genetics, field observations,
and a detailed study of the physical appearance of lots of ants in Borneo, a big island in
the southwestern Pacific ocean.
Classifying ants can be especially tricky because the same species can have wildly different
social castes.
This explosiveness, for instance, only applies to smaller female workers.
The larger workers, or soldiers, actually have huge heads that are flattened in the
front, which they can kind of use to barricade their nests.
Males and queens also look totally different, and also don't explode.
The team studied one particular colony of yellow goo ants in the rainforest, which they
estimated included thousands of individuals across multiple nests.
In fact, it spread out over at least 2500 square meters, or more than half an acre,
and stretched as high as 60 meters up into the trees.
And really, the main action is even farther away.
Previous studies of exploding ants have found that, weirdly, the ants aren't sacrificing
themselves to protect their nests.
Instead, they're protecting their foraging territory.
This makes the ants outliers among kamikaze insects, too.
Usually a more direct threat to the colony justifies the suicide, not just defending
food sources.
In any event, this team of researchers is on the cusp of identifying even more new species,
and there are plenty more exploding ants — and fluids — to discover.
A huge thank-you to SR Foxley, our Patreon President of Space for supporting this not
particularly brand-safe episode of SciShow.
What will we do without you?
If you want to support free science content and get fun rewards like your name on screen
with beautiful informative graphics that you helped create with your contribution, you
can go to patreon.com/scishow.
[♪OUTRO]
-------------------------------------------
REACTION: JBALVIN FEAT. LIAM PAYNE - "Familiar" (with subtitles) - Duration: 2:02.
hey guys! welcome back to my channel! Today is going to be a reaction video on
the new JBALVIN and Liam Payne song called "Familiar"
I honestly don't like the song, i mean i love jbalvin and i love liam payne
i love jbalvin but this song??? nope.
I love all the songs of JBALVIN but just not this one.
i hope you liked this short video,
and if you did like it, hit the like button and the subscribe button down below
AND TURN ON MY POST NOTIFICATIONS TO BE NOTIFIED WHENEVER I UPLOAD!
I HOPE YOU GUYS ENJOYED MY VIDEO in spanish because
i have never done this before and its
new to me but if you guys liked it please subscribe and i will see you in the next
video in spanish? or in english? i honestly dont know. BUT I DO KNOW THAT TODAY IS FRIDAY AND THEY PAY ME FROM BOTH OF MY JOBS TODAY!
i hope you guys have a great day and
i will see you guys in my next video! BYE!!
-------------------------------------------
Ce qui est arrivé à mon corps lorsque j'ai commencé à boire du jus d'aloe vera - France 365 - Duration: 3:52.
For more infomation >> Ce qui est arrivé à mon corps lorsque j'ai commencé à boire du jus d'aloe vera - France 365 - Duration: 3:52. -------------------------------------------
Back pay (USA 1922 HD) - Duration: 1:30:07.
For more infomation >> Back pay (USA 1922 HD) - Duration: 1:30:07. -------------------------------------------
歌手后接档创意节目, 沈梦辰得到大家认可, 汪涵何炅搭档讲实话 - Duration: 1:31.
For more infomation >> 歌手后接档创意节目, 沈梦辰得到大家认可, 汪涵何炅搭档讲实话 - Duration: 1:31. -------------------------------------------
Mega-Erfolg mit "Dicke Lippen": Katja K. rockt Single-Charts - Duration: 1:29.
For more infomation >> Mega-Erfolg mit "Dicke Lippen": Katja K. rockt Single-Charts - Duration: 1:29. -------------------------------------------
Supporters Flock To See Trump Motorcade, POTUS Stunned By 1 Sign In The Crowd - Duration: 4:22.
Supporters Flock To See Trump Motorcade, POTUS Stunned By 1 Sign In The Crowd.
On Thursday, President Donald Trump traveled to the Joint Interagency Task Force South
at Naval Air Station Key West for a border security briefing with Homeland Security Secretary
Kirstjen Nielsen.
While en route, he was given an awesome surprise throngs of Trump supporters had lined the
highway into Key West holding homemade banners and waving American flags.
POTUS was particularly stunned by one sign he saw in the crowd.
President Donald Trump departed West Palm Beach, Florida, on Thursday after spending
several days with Japanese Prime Minister Shinzo Abe and his wife at Mar-a-Lago.
Japanese Prime Minister Shinzo Abe began two days of meetings with President Trump at the
president's Mar-a-Lago estate in Florida Tuesday.
Just looking over the amount of issues these two world leaders will need to discuss, their
"special relationship" will be tested in a historic manner.
At the start of their meeting, President Trump announced, with Abe at his side, that North
and South Korean leaders – who are holding their own summit April 27 – will seek to
finally reach an agreement to formally end the Korean War, which was halted with an armistice
in 1953.
[Source: Fox News] By all accounts, Donald Trump's time with
Shinzo Abe was a resounding success.
The pair has kindled a tight relationship ever since the 45th president took office,
and that relationship will be instrumental as North and South Korea meet for historic
peace talks.
For her part, First Lady Melania Trump treated her Japanese counterpart to a tour of a historic
U.S. mansion as their husbands discussed official business:
First lady Melania Trump might be one of the few not overly awed by a marble-bedecked and
gold-plated Gilded Age mansion that she and her Japanese counterpart toured Wednesday.
While President Donald Trump and Japanese Prime Minister Shinzo Abe golfed at the president's
nearby country club, their wives visited Whitehall, the 75-room, 100,000-square-foot (9,290-square
meter) waterside retreat that oil and railroad tycoon Henry Flagler built as a wedding present
for his third wife, Mary Lily Kenan Flagler.
The Flaglers wintered there beginning in 1902, and it is now the centerpiece of the Flagler
Museum.
Arriving in a motorcade from Mar-a-Lago, the president's own gold-plated mansion 3 miles
(5 kilometers) away, Melania Trump and Akie Abe were greeted by Flagler's great grandson
William Matthews, and museum Executive Director Erin Manning, who led them through a tour
of the home, which historians say cost $4 million ($110 million today) to build.
[Source: ABC News] After wrapping up his time with Japanese Prime
Minister Shinzo Abe, President Donald Trump headed to the Joint Interagency Task Force
South at Naval Air Station Key West for a border security briefing with Homeland Security
Secretary Kirstjen Nielsen.
While en route, he was treated to an inspiring display by his supporters, who had lined the
highway into Key West.
One woman's sign labeled Trump "our greatest president."
President Donald Trump was deeply moved by the outpouring of support he received in Key
West, and he commented on the size of the crowds after his briefing at the Naval Air
Station.
"I hope you saw the crowds in Key West," the president told reporters.
"I've never seen anything like that, it was really very inspirational, and what we
just witnessed was incredible.
Even the media will have to say that was quite something," Trump said.
Later in the day, a video of the impressive crowd set to Lee Greenwood's "God Bless
The USA" was posted to Trump's Instagram account.
Indeed, this level of support for any president one year into their administration is "quite
something."
The media is working overtime to discredit him and smear his character by parading around
any sleazeball who claims to have slept with him in the past two decades.
It is obvious that the American people can see right through these shameless attempts
to bring down the man who has turned Washington on its head in the best way.
What do you think about this?
Please share this news and scroll down to Comment below and don't forget to subscribe
USA facts today.
-------------------------------------------
Kim Kardashian Working On Sexy New Lingerie & Shapewear Line - Duration: 2:29.
Kim Kardashian Working On Sexy New Lingerie & Shapewear Line
After it was revealed that her DASH boutiques will be permanently closing, Kim Kardashian wasted no time exploring another avenue within the apparel industry.
The mother of three is developing a new collection of shapewear and lingerie to be released in the near future.
Sources confirm to TMZ that the reality television star is currently hard-at-work on a line of intimates that will serve a variety of women in all body shapes and sizes.
However, Kardashian has been making sure that her involvement in the product is beyond just having her name stamped on a label, as she has been a crucial element in all avenues of the budding new fashion venture, including design and marketing.
The beauty mogul will be working with the team behind sister Khloes Good American brand, as well as Frame and Mr Porter.
The endeavour is being projected to serve a wide clientele by featuring a more justifiable price point.
Kims intimates are expected to debut in retailers by the end of this year, perhaps as a particularly seductive Christmas gift idea?.
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