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磯原杏華 - Google+ - 27 Aug 2014


Today’s breakfast is ham plate
Which should be eaten first?
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磯原杏華 - Google+ - 26 Aug 2014

Mama bought me a birthday cake🎂✨

My favorite no-bake cheesecake☺︎
Lots of chocolate💟

絶品すぎるぅー( > <。)♡
Too delicious( > <。)♡
Cake makes happy!
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See-Through Frog Embryos Know When Dad’s Not Watching

With their hearts, guts and other internal organs visible through translucent skin, glass frogs look vulnerable.

Now, scientists have found that the embryos of these nocturnal frogs do not like staying defenseless, so they hatch more quickly when their fathers desert them.

The early stages of life are usually the most vulnerable, and parents across many animal species protect their embryos as they develop. Birds typically brood their own eggs, resting on top of them for incubation, while humans and similar mammals protect embryos within themselves during pregnancy. There are exceptions to such rules — for instance, cuckoos get other birds to brood their eggs.

However, many embryos have ways of taking care of themselves, especially if their parents abandon them. For instance, “in red-eyed tree frogs, a species without parental care, embryos can assess and rapidly hatch in response to predators,” said lead study author Jesse Delia, an ethologist at Boston University. “Embryos are evolving, responsive organisms.”

Although scientists have found that embryos can hatch early in species without parental care, Delia told Live Science, “to date, no work has evaluated whether embryos hatch in response to bad parents” — that is, parents that shirk their duties in species that are supposed to care for their eggs.

To explore how embryos might respond to bad parenting, scientists investigated glass frogs, amphibians found throughout Latin America. In the species Hyalinobatrachium fleischmanni, the fathers brood eggs to keep them wet for three to 19 days after the mothers lay the eggs. The eggs can hatch anywhere from 12 to 27 days after they are laid.

"In glass frogs, fathers provide parental care to embryos, and there is a lot of variation among fathers — some provide care for prolonged periods, while others seem to provide the bare minimum needed for embryos to survive," Delia said.

In glass frogs, fathers can desert their eggs for up to two days in order to pursue sex. This leaves their eggs vulnerable to dehydration and death.

In experiments conducted out in the field in Mexico in 2009 and 2010, scientists removed 40 males from eggs two to eight days after the eggs were laid, and monitored embryo responses.

"Field work was challenging at times — the behavior of these frogs is truly fascinating, but the only way to study these nocturnal beasts is by becoming a creature of the night," Delia said. "I conducted research in a small pueblo in the Sierra Madre del Sur of Oaxaca. Pueblo life typically starts at 4 to 5 a.m., often initiated by roosters and dogs, then followed by wake-up music to get the day going. My night typically ended at 4 a.m., so getting sleep was tricky at times.

"Also, 2010 was one of the wettest years on record for southern Mexico," Delia said. "Collecting data required that I was on stream taking measurements each night, regardless of weather."

The scientists discovered that glass-frog eggs hatched about 21 percent earlier on average when the fathers were removed. They hatched up to about 34 percent earlier when conditions were drier, suggesting that dehydration was the cue the eggs relied on to hatch early.

"Embryos can cope with delinquent dads," Delia said.

The researchers suggest this kind of embryo behavior may be common among species that provide care to eggs, such as insects, bony fishes and amphibians. “Variation in parental care seems to be the norm rather than the exception,” Delia said.

The scientists detailed their findings online April 30 in the journal Proceedings of the Royal Society B.


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Kawaei mathematics

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<b>Goro Miyazaki happy at work on Studio Ghibli’s New TV Series Ronia the Robber’s Daughter which will air this Autumn in Japan.<b/>

You can see character designs on the wall in the background :D

Studio Ghibli’s first foray into television is an animated series based on the children’s book of the same name by Astrid Lindgren.

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Based on this post.

08.27.PM 12 notes


DOWLOAD : interview | game

08.26.PM 39 notes

AKB48 in Shoujotachi yo [2/3]

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