A feral cat

The Environmental Danger of Outdoor Cats

Outdoor cats are an environmental disaster.
A close-up of a zebra

Why Do Zebras Have Stripes?

Why do zebras have stripes? Perhaps to cool off, according to new research.
A comet moving through a starry sky

Where is Water From? Probably Not Comets

A recently completed analysis of comet 67P/C-G by the Rosetta Space Craft has effectively ruled out comets as the primary source of Earth’s water.
Dr. Eugene Porter Walking Dead

Walking Dead: The Science Behind the Zombies

Walking Dead: the science behind the zombies.
A neon blue outline of the human brain

Nobel Prize Awarded for Research Related to “Internal GPS”

The 2014 Nobel Prize in Medicine was awarded to three scientists whose work focused on the brain's "internal GPS."
Plastic and trash litter a shoreline.

“Plastic Rock” Marks the Presence of Humans in the Fossil Record

Plastic in the ocean has created an entirely new kind of rock: plastiglomerate.