Life
- Animals
In a colony, king penguins behave like molecules in a 2-D liquid
Positions of king penguins in a breeding colony resemble molecules in a 2-D liquid.
- Neuroscience
Human brains make new nerve cells — and lots of them — well into old age
In humans, new neurons are still born in old brains, new research suggests.
- Paleontology
This ancient lizard may have watched the world through four eyes
A lizard that lived 50 million years ago had both a third and a fourth eye.
- Paleontology
Readers debate dinosaur designation and more
Readers had questions about the dino family tree and Venus' habitability.
- Animals
Flying insects tell tales of long-distance migrations
Researchers are asking big questions about animal movements and pest control by tracking tiny insects in flight.
- Genetics
Birds get their internal compass from this newly ID’d eye protein
Birds can sense magnetic fields, thanks to internal compasses that likely rely on changes to proteins in the retina.
- Anthropology
Ardi walked the walk 4.4 million years ago
Ancient hominid evolved upright stance without sacrificing climbing ability.
- Animals
How honeybees’ royal jelly might be baby glue, too
A last-minute pH shift thickens royal jelly enough to stick queen larvae to the ceiling of hive cells.
- Animals
The truth about animals isn’t always pretty
The Truth About Animals digs up surprising stories about sloths, pandas, penguins and other wildly misunderstood wildlife.
- Animals
Toxins from the world’s longest animal can kill cockroaches
Bootlace worms can stretch up to 55 meters long and ooze toxins that can kill cockroaches and green crabs.
- Animals
Some frogs may be bouncing back after killer chytrid fungus
Frogs in Panama may be developing defenses against a fatal skin disease, a new study suggests.
- Life
Why cracking your knuckles can be so noisy
Knuckles crack due to the partial collapse of bubbles in joint fluid, a new study suggests.
