Orca moms spent precious resources feeding their fully grown adult male offspring. A new study finds that this may limit how many more young they produce.
The creeks, streams and rivers we rely on for clean water are increasingly under stress from pollution and even from the power of rainfall itself.
To measure how that stress affects a watershed’s health, you can do lots of different things, like measuring the oxygen in the water or looking at how stormwater runoff changes a streambed. Or, you can look and see what is still living in the stream.
Researchers who detected environmental DNA, or eDNA, in two zoos say the technique could one day be used to look for endangered species in remote locations in the wild.
Xenobots, a type of programmable organism made from frog cells, can replicate by spontaneously sweeping up loose stem cells, researchers say. This could have implications for regenerative medicine.
On mountaintop glaciers of Alaska, Washington and Oregon, billions of tiny black worms are tunneling upward to the barren, icy surface. What lures them, and how do they survive the frozen depths?
It's the first confirmed case of coronavirus reinfection in the U.S. The case underscores that everyone should be social distancing and wearing masks, including COVID-19 survivors.
The things you find in drawers when you move. Old credit cards. Single socks. Concert tickets. Phone chargers. Two foot long dead squirrels. Well,...
A roomful of children closes in on Puddles the copperhead snake. She’s in a clear plastic box. And today she’s acting as an ambassador for a copperhead...
