Evolution

The starfish relatives can recognize patterns using photoreceptors on their arms—and their color-changing abilities could have something to do with it. Christopher Intagliata reports.

Smell was certainly an important part of dinosaur life. What do we know about it?

Scientists observed two Atlantic puffins using sticks to scratch themselves—the first known instance of seabirds using tools. Christopher Intagliata reports. 

A Chinese court sent a strong signal by punishing He Jiankui and two colleagues

In South Africa archaeologists found the charred remains of a roasted root vegetable. Christopher Intagliata reports.

Envisioning the Jurassic world requires a lot of fossil detective work

Alpine harvestmen live where, long ago, glaciers stretched south 

A study of whale feeding habits found that food is the main limit to the size of ocean giants

Male competition and female preferences have driven arms races for the flashiest horns, antlers, pincers, tusks and claws

Certain species of bacteria and fungi seem to proliferate on dandruff-ridden scalps. The reason is a little more mysterious. Christopher Intagliata reports. 

Tiger moth species that contain bad-tasting and toxic compounds are nonchalant in the presence of bats, while edible moth species evade their predators.

In shallow waters off the coast of Israel, archaeologists have found entire villages—including one with a sunken seawall. Christopher Intagliata reports.