Pennsylvania police officer, suspect critically wounded in shooting

Our Toddler Memories May Not Be Permanently Lost, Mouse Study Shows

There Was a Shocking Amount of Plastic in This Dead Whale's Belly – Including Flip-FlopsA Hidden, Radioactive Heat Source Seems to Be Melting East Antarctica From Below

It Looks Like a Weird Feature of The Arctic Atmosphere Is Making Climate Change WorseClimate Change Likely Caused The Collapse of This Ancient Civilisation 4,000 Years AgoWhy Your Palm Oil Boycott May Not Be The Best Way to Save The Environment

Orangutans Just Became The Only Non-Human Primates We Know of Who Can Talk About The PastWhen It Rains in The Driest Desert on Earth, It Literally Brings Death, Not Life

Good News! We Have Found a Thriving Polar Bear Population Somewhere on Our Planet

This Italian Supervolcano Looks to Have Restarted Its Deadly Cycle of FireThat Weird Link Between Sense of Smell And Death Risk Continues to Defy Explanation

It's Not Just You – We're All Sadder, Angrier And More Worried Than Ever, Study FindsA Chronic Fatigue Blood Test Looks Increasingly Promising, But It's Still Early Days

Unsure About Vaccines? These Brutal Images Show What Measles Actually Does to KidsWhy Are You Always Tired, Even Though You Get Enough Sleep? Science Has Some Answers