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A Canine Companion So Nice It (Maybe) Evolved Twice

Like a Bird on a Wire That Starts a Wildfire

NASA’s CAPSTONE Launch to the Moon: How to Watch

Trumpet the bloodhound wins Best in Show at Westminster Dog Show

Remember Pizza Rat? Meet Pollinator Rat.

Think All Viruses Get Milder With Time? Not This Rabbit-Killer.

The Incredible Journey of Three African Wild Dogs

Her dog died suddenly. Then a Chewy delivery brought a surprise.

Her dog died suddenly. Then a Chewy delivery brought a surprise.

NASA launches an addictive and new — actually retro — game for you

A Chinese Telescope Did Not Find an Alien Signal. The Search Continues.

Invasive fire ants could be controlled by viruses, scientists say

Invasive fire ants could be controlled by viruses, scientists say

Classifying animals by anatomy might not be best system, study says

Eavesdropping on the Secret Lives of Dolphins in New York Harbor

Summer Monarch Populations Are Steady Despite Winter Declines, Study Finds

Two new versions of Omicron are gaining ground in the U.S., according to C.D.C. estimates.

Before Chickens Were Nuggets, They Were Revered

He Helped Cure the ‘London Patient’ of H.I.V. Then He Turned to Covid.

Siberia’s tundra could soon disappear, scientists warn

Endangered Anegada rock iguanas are being eaten like popcorn by cats

William E. Stoney Jr., NASA engineer during space race, dies at 96