News tagged with evolutionary models

Scientists explore hormone evolution

(PhysOrg.com) -- New research techniques on animals living in the wild are helping scientists test long-held ideas about the role of hormones in survival, according to comments by Professor of Biology Jan ...

Mar 03, 2009 not rated yet 1

Why Don’t More Animals Change Their Sex

(PhysOrg.com) -- Most animals, like humans, have separate sexes — they are born, live out their lives and reproduce as one sex or the other. However, some animals live as one sex in part of their lifetime and then switch ...

Feb 02, 2009 5 / 5 (3) 3