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Pupil's brain recognizes the perfect teacher

Youngsters learn many important behaviors by imitating adults. But young learners are selective in who they copy, and scientists don't understand how they choose the right teacher.

Young male zebra finches must learn to copy the song of an adult tutor in order to ultimately attract a mate. Researchers already knew that juveniles don't copy songs...

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Blue crab baby sizes and shapes influence their survival

Like people, blue crabs aren't all the same sizes and shapes. Now Rutgers scientists have discovered substantial differences in the body structures of larval crab siblings and among larvae from different mothers. And that can mean the difference between an early death and survival into adulthood for this important commercial and recreational species.

Unlike other crab...

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Winter ticks killing moose at alarming rate

As winter in New England seems to get warmer, fall lingers longer and spring comes into bloom earlier, areas like northern New Hampshire and western Maine are seeing an unusual continued increase in winter ticks which are endangering the moose population. Researchers at the University of New Hampshire have found that the swell of infestations...

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Letting nature take its course: Wolves in Yellowstone National Park

Since the reintroduction of wolves to Yellowstone National Park in 1995, the park's ecosystem has become a deeply complex and heterogeneous system, aided by a strategy of minimal human intervention. The new study is a synthesis of 40 years of research on large mammals in Yellowstone National Park, conducted by University of Alberta ecologist Mark...

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A selfish gene makes mice into migrants

House mice carrying a specific selfish supergene move from one population to another much more frequently than their peers. This finding of a University of Zurich study shows for the first time that a gene of this type can influence animal migratory behavior. It could help in dealing with invasive plagues transmitted by mice.

Usually the...

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