Investigate

The Very Territorial Caterpillar

Scientists Reveal the Hairy Truth About Giant Ground Sloths

Auroras Are Spotted on Neptune for the First Time, and Lead to a New Mystery

Videos Show Narwhals Using Their Tusks to Play With Their Food

Science, Politics and Anxiety Mix at Rally Under Lincoln Memorial

Humans Have Been Perfecting Avocados for 7,500 Years

A Boneyard Along the Thames River Reveals London’s Ancient Burials

The Gene That Made Mice Squeak Strangely

Louis Pasteur’s Relentless Hunt for Germs Floating in the Air

Lasers, Waffle Fries and the Secrets in Pterosaurs’ Tails

Grand Canyons on the Moon Were Made in a Matter of Minutes

Could the Bird Flu Become Airborne?

Snakeskin: It’s Fashionable, and It Scares Predators Away From Bird Nests

When They Hear Plants Crying, Moths Make a Decision

Google Introduces A.I. Agent That Aces 15-Day Weather Forecasts

Giant Redheaded Centipedes Are Venom Mixologists

Air Turbulence From a Storm Can Start Earlier Than You Expect

Killer Whales Hunt and Feast on the Largest Fish On Earth

Psychedelic Traces Found on Mug From Ancient Egypt

Hundreds More Nazca Lines Emerge in Peru’s Desert