Animals
- Animals
Frogs evolved a wide variety of vocal sacs to amplify their ribbits
Maybe you've seen frogs with ballooning throats, but what about pop-out poofs and fat ear bumps?
- Animals
Scientists Say: Kleptopredation
It’s a hunter-eat-hunter world out there, and this feeding strategy gives some double-dipping predators a competitive edge.
- Animals
Young capuchins are kidnapping baby howler monkeys
The disturbing habit has emerged among capuchin monkeys on a remote island off Panama. Scientists are baffled — and concerned.
- Fossils
North American rhinos once gathered in large, hippo-like herds
The stumpy-legged rhinos survived until about 12 million years ago, when a supervolcano’s ashfall smothered their world.
- Animals
Loss inspired this biologist to study aging
Juan Manuel Vazquez studies the anti-aging genes that have allowed some animals to evolve to live remarkably long lives.
- Genetics
Orange cats get their ginger color from a single gene ‘cutout’
The variant gene is found on the X chromosome. This sex-linked trait for orange fur is found only in domesticated cats.
- Animals
These fish yawn — and it’s contagious
Zebrafish are the first cold-blooded animals known to behave this way. Contagious yawning may affect other behaviors in these fish, too.
- Animals
Whale pee is an ocean bounty
Some migrating cetaceans move thousands of miles to their breeding grounds, where whale urine fertilizes ocean waters with valuable nutrients.
- Animals
Analyze This: Moving frogs to new places helped an endangered species spread
Frogs resistant to a deadly fungus jump-started populations in these new areas.
- Animals
The rear end of this ancient wasp was built like a Venus flytrap
The newfound wasp species — from 99 million years ago — likely laid eggs on the small creatures that would have been caught in this trap.
- Animals
Captive-breeding axolotls may help avoid their extinction
The axolotl program's success shows promise in helping protect this highly popular amphibian — currently found in only one lake — from dying out in the wild.
- Animals
Teens work to keep giant water bugs on the menu
Many culinary cultures around the world prize these nutritious and flavorful insects. New approaches may help giant water bug farming efforts.
