鈥榁irtual fossil鈥 reveals last common ancestor of humans and Neanderthals

18 December 2015

New digital techniques have allowed researchers to predict structural evolution of the skull in the lineage of Homo sapiens and Neanderthals, in an effort to fill in blanks in the fossil record, and provide the first 3D rendering of their last common ancestor. 探花直播study suggests populations that led to the lineage split were older than previously thought.

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A black howler monkey chorus

Calls vs. balls: monkeys with more impressive roars produce less sperm

22 October 2015

Evolutionary 鈥榯rade-off鈥 between size of throat and testes discovered in howler monkeys furthers Darwin鈥檚 theory of sexual selection and corresponds to mating systems: males with larger throats but smaller testes often have exclusive access to females, while those with larger testes share mates. 聽 聽

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