A Monarch Retreat
For Californians, Thanksgiving is prime time for butterfly counting.
Bristling at the Cold
Its brown and black bristles help this creature survive harsh winters.
4:06
The Other Golden Rule
Why most mammals—even elephants—take only 20-30 seconds to urinate.
The Other Golden Rule
Did you know that most mammals, from a house cat to an elephant, take roughly the same amount of time to urinate?
7:44
So Far, No Silver Bullet To Stop Lethal Bat Fungus
Scientists say antifungal bacteria could help fight the fungus causing white-nose syndrome.
3:20
The Myth of the Woolly Bear
Can woolly bear caterpillars predict winter weather?
Rainbow in a Tree
This eucalyptus’ kaleidoscopic bark is a photographer’s delight.
Mavericks Of The Bat World
Mexican free-tailed bats engage in aerial acrobatics reminiscent of the jet maneuvers in “Top Gun.”
3:59
Discover the Inner Beauty of the Naked Mole Rat
How do naked mole rats live to 30 years without getting cancer?