
Earth’s earliest life-forms built mounds on an Antarctic lake bottom

Tiny life forms in rock may coax minerals to release hydrogen for food
One of the world’s simplest organisms is also one of the hardest to classify.
Lichens live in nearly every environment on Earth, but scientists are still discovering basic information about them.
In the Galápagos Islands, scientists are struggling to save some of the most endangered creatures in the world.
More than one-fourth of the honeybees in the United States have disappeared since last fall, and scientists are trying to figure out why.
Scientists are collecting information to create a family tree for fungi (and mushrooms).