Animals
- Brain
A dog’s amazingly large vocabulary
A border collie named Rico recognizes a surprisingly large number of words.
- Animals
Hippo sweat is natural sunscreen
Hippo "sweat" contains substances that fight microbes and screen out ultraviolet light.
- Animals
Prime time for cicadas
Researchers are tracking down why some types of cicadas emerge in vast numbers only once every 17 years.
- Ecosystems
Frogs get poison from ants
The skin of some frogs becomes poisonous after they eat certain kinds of ants.
- Animals
Noisy boats may bother orcas
Whale watcher boats may be so noisy that killer whales must change their calls to be heard.
- Genetics
What makes a dog?
Analyzing dog DNA is helping to explain the origin, behavior, and diseases of dogs.
- Animals
Male baboons get mellow
Females may get male baboons to tone down violent behavior and become more cooperative.
- Animals
Snagging insects, hummingbird style
A hummingbird has an unexpectedly flexible lower bill to help it catch bugs.
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- Animals
Sea otters, kelp, and killer whales
Learning more about sea otters can help rescue the animals and save coastal ecosystems.
- Animals
Some birds heed a monkey’s warnings
An African forest bird can tell which monkey alarm calls to pay attention to.
- Genetics
A butterfly’s new green glow
Scientists have tweaked a butterfly's genes to make its eyes glow green.
