Biology - Evolution news

Sloths are no slouches when it comes to evolution

Today's sloths might be known as slow, small animals, but their ancestors developed large body sizes at an amazing rate, according to an evolutionary reconstruction published today in the open access journal ...

Sep 10, 2014
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A single evolutionary road may lead to Rome

A well-known biologist once theorized that many roads led to Rome when it comes to two distantly related organisms evolving a similar trait. A new paper, published in Nature Communications, suggests that w ...

Sep 08, 2014
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Whale sex: It's all in the hips

(Phys.org) —Both whales and dolphins have pelvic (hip) bones, evolutionary remnants from when their ancestors walked on land more than 40 million years ago. Common wisdom has long held that those bones ...

Sep 08, 2014
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The roots of human altruism

Scientists have long been searching for the factor that determines why humans often behave so selflessly. It was known that humans share this tendency with species of small Latin American primates of the ...

Aug 27, 2014
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Are flexible parents adaptable parents?

(Phys.org) —The flexibility of parental behaviours to respond to changes in behaviour of their offspring may actually constrain the ability of parents to adapt to changes in their wider environment.

Aug 18, 2014
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UMSL scholar examines evolution of learning

Why do monkeys learn to be afraid of snakes and not flowers? Is this knowledge the result of evolution by natural selection? Did the monkeys that couldn't learn that association quickly die and not reproduce?

Aug 14, 2014
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