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sciencecenter:

Embryonic turtles communicate to coordinate when they hatch

Murray River turtles communicate with their siblings while they are still in their shells, buried under the soil, in order to coordinate when they hatch.
Achieving this synchronicity isn’t easy. Although the eggs are always laid at the same time in the same nest, those at the top of the nest near the sun-drenched soil develop much faster than those buried deeper in the cooler soil. However, Murray River turtles are able to tell whether their fellow hatchlings are more or less advanced and adapt their pace of development accordingly, allowing the slow-coaches to play catch-up. […]
The team concluded that the embryos must be able to communicate with each other while they are still in their shells, but it’s not clear how. They suggest that it could be down to changes in the nest that trigger certain hormones that change the turtles’ metabolism. Embryos produce more thyroid hormone when oxygen levels fall. The fast-developing embryos could use up the oxygen levels around the next and emit more carbon dioxide. The reduction in oxygen could cause the slower developers to produce more thyroid hormone and therefore grow faster.

I’m inspired. When’s the last time you put that much effort into cooperating with your siblings?

Embryonic turtles communicate to coordinate when they hatch

Murray River turtles communicate with their siblings while they are still in their shells, buried under the soil, in order to coordinate when they hatch.

Achieving this synchronicity isn’t easy. Although the eggs are always laid at the same time in the same nest, those at the top of the nest near the sun-drenched soil develop much faster than those buried deeper in the cooler soil. However, Murray River turtles are able to tell whether their fellow hatchlings are more or less advanced and adapt their pace of development accordingly, allowing the slow-coaches to play catch-up. […]

The team concluded that the embryos must be able to communicate with each other while they are still in their shells, but it’s not clear how. They suggest that it could be down to changes in the nest that trigger certain hormones that change the turtles’ metabolism. Embryos produce more thyroid hormone when oxygen levels fall. The fast-developing embryos could use up the oxygen levels around the next and emit more carbon dioxide. The reduction in oxygen could cause the slower developers to produce more thyroid hormone and therefore grow faster.

I’m inspired. When’s the last time you put that much effort into cooperating with your siblings?

I suffered from insomnia, I have never seen a dream lately, maybe death will come to me soon

paperimages:

Henri Toulouse Lautrec, Desire Dehau Reading a Newspaper in the Garden, 1890. Musee Toulouse-Lautrec, France.

OWL CITY

I LIKE OWL CITY, I DONT EVEN KNOW WHY I POST THIS :)

freshphotons:

Mind and Body, 2005, Chris Saunter.

300+ circles are cut from the gallery walls and then used to construct a telescope that aims back at the wall to study the newly constructed star field made by the holes. Via.

alice in wonderland 3d graffiti

awesome 3d pict

moltdance:

The Andean Condor (Vultur gryphus) is a species of South American bird in the New World Vulture family Cathartidae and is the only member of the genus Vultur.

It has the largest wingspan of any land bird, at 10.5 to 11 feet.

newsflick:

The Disappearing Country: With 80% of the country less than one metre above sea level, the residents of the Maldives’ 1,200 tropical islands have long been aware of their vulnerability to rising sea levels. In 2008, it was announced that the government would start diverting a percentage of the nation’s income from tourism into a fund to buy a new homeland. The deep irony that the island nation’s economy relies heavily on tourists arriving in polluting aircraft has not been lost on the islanders. (Sakis Papadopoulos)