Mammalian body cells lack ancient viral defense mechanism

A team led by Chris Sullivan, a professor of molecular biosciences at The University of Texas at Austin, has provided the first positive evidence that RNA interference (RNAi), a biological process in which small RNA molecules ...

Fossils indicate common ancestor for two primate groups

(Phys.org) —Palaeontologists working in Tanzania have discovered the oldest known fossils from two major primate groups—Old World monkeys, which include baboons and macaques, and apes, which include humans and chimpanzees. ...

Researcher helps construct Lepidoptera family tree of life

A new international study co-authored by a University of Florida researcher describes one of the most comprehensive analyses of Lepidoptera evolutionary relationships to date, and could have broad implications in the fields ...

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