Investigate

You Get Thirsty and Drink. How Does Your Brain Signal You’ve Had Enough?

When Stars Were Born: Earliest Starlight’s Effects Are Detected

No Sign of Newborn North Atlantic Whales This Breeding Season

Barbra Streisand Cloned Her Dogs. For $50,000, You Can Clone Yours.

Robot Claw Shows Intricacies of Crab Courtship

For Fiddler Crabs, ‘Size Does Matter’

Inside Wounded Flies, Fat Cells Race to the Rescue

King Penguins Are Endangered by Warmer Seas

Scientists Fear for Colombia’s ‘Melted Rainbow’

It’s a Dog’s World, Especially in the Lab. Where Are the Cats?

F.D.A. to Expand Medication-Assisted Therapy for Opioid Addicts

The Ocean Breathes So We Can, Too

A 3-D Look Inside the Tasmanian Tiger’s Pouch, Long After Extinction