Evolution Diary

The study reveals the likely mechanism by which the Arabidopsis plant flowers in response to changes in day length. (…)

By JOHN NOBLE WILFORD
CHICAGO — Observed in the wild and tested in captivity, chimpanzees invite comparison with humans, their close relatives. (…)

A Cardiff fossil expert has identified a pair of 385-million-year-old trees, thought to be among the world’s oldest. (…)

A changing climate may be responsible for the sharp drop in more than a dozen species of lizards and frogs in Central America, according to a new long-term study. (…)

When ancient amphibians evolved to live on land, they were already prepared for the challenge of feeding in air, scientists report. (…)