Evolution is always happening — so why can't we see it? A biologist explains the timescale problem, election pressure, and ...

Picture a mouse taking rapid, staccato sniffs of a crumb it's found while foraging for food. Now compare that with a human leaning in for a single, deep inhale to gauge whether a cantaloupe is ripe.

Exceptionally preserved fossils from China reveal that bryozoans were already thriving during the Cambrian explosion.