Bat Radiations

A new study involving bat skulls, bite force measurements and scat samples collected by an international team of evolutionary biologists is helping to solve a nagging question of evolution: Why some groups of animals develop scores of different species over Read More...

Female Moaning: How Female Moose Control Mating

One of the key questions in sexual selection theory is how do females choose the best mate? Research has generally focused on the role of male-male competition for access to receptive females, with less attention paid to female mate choice. Theory predicts that Read More...

Out of Africa: Caviomorph Origins

South America was isolated from Africa and the North American continent during most of the Cenozoic. As a result, early mammalian immigrants evolved in isolation resulting in a unique assemblage of terrestrial mammals. Approximately 34 million years ago (Eocene-Oligocene) global cooling and drying periods are believed to have spurred major faunal changes in South America terrestrial fauna,
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