World Science

Tiny genome may be melting away, study suggests:

Researchers have identified the smallest known genome, and say it may suffer a strange fate.

For ants, one playbook fits many situations:

Scientists are interested in the "algorithms," or step-by-step rules, by which organisms make decisions.

Fitness, childhood IQ may affect old-age brain function:

Mental function in old age depends more on fitness than on childhood IQ, a study has found.

Strongest evidence yet that planets form from 'disks':

The philosopher Emmanuel Kant got it right 200 years ago, researchers proclaim.