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11. Jan 12

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von paeldridge

Great apes make sophisticated decisions


Chimpanzees, gorillas and orangutans make decisions carefully. Great apes weigh their chances of success, based on what they know and the likelihood to succeed when guessing.

19. Jan 12

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von hrabeck

Female fish choose sexier friends to avoid harassm...


Scientists have observed a strategy for females to avoid unwanted male attention: Choosing more attractive friends. The study is the first to show females spending time with those more sexually attrac...

27. Jan 12

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von mmongiello

Scientists rediscover rarest U.S. bumblebee: Cocke...


A team of scientists recently rediscovered the rarest species of bumblebee in the United States, last seen in 1956, living in the White Mountains of south-central New Mexico. Known as "Cockerell's Bum...

01. Feb 12

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von kkarlene

'Alien' eggs benefit mockingbirds


Mockingbirds rarely remove the 'alien' eggs parasitic cowbirds lay in their nests because keeping them dilutes the risk of their own eggs being attacked.

12. Mar 12

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von adedwards

Sperm can do 'calculus' to calculate calcium dynam...


Sperm have only one aim: to find the egg. The egg supports the sperm in their quest by emitting attractants. Calcium ions determine the beating pattern of the sperm tail which enables the sperm to mov...

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