Not all altruism is alike, says new study

(Phys.org) -- Not all acts of altruism are alike, says a new study. From bees and wasps that die defending their nests, to elephants that cooperate to care for young, a new mathematical model pinpoints the environmental conditions ...

Fossil finds shed light on penguins' evolutionary past

Africa isn't the kind of place you might expect to find penguins. But one species lives along Africa's southern coast today, and newly found fossils confirm that as many as four penguin species coexisted on the continent ...

Nearly 50 years of lemur data now available online (w/ Video)

A 48-year archive of life history data for the world's largest and most diverse collection of endangered primates is now digital and available online. The Duke Lemur Center database allows visitors to view and download data ...

Peacock love songs lure eavesdropping females from afar

Deep in the scrublands of Keoladeo National Park in northwest India, one thing was hard for biologist Jessica Yorzinski to ignore: It wasn't the heat. It wasn't the jackals. It was the squawks of peacocks in the throes of ...

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