Life
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- Fossils
Fingerprinting fossils
Researchers can find out in what kind of soil a fossil was originally buried.
- 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.
- Plants
Plants travel wind highways
Some plants can hitchhike along invisible freeways of wind to reach distant places.
- Animals
Prime time for cicadas
Researchers are tracking down why some types of cicadas emerge in vast numbers only once every 17 years.
- Brain
Little Toys, Supersize Mistakes
Toddlers sometimes treat small objects, such as toy cars or dollhouse chairs, as if they're much larger.
- Fossils
Ancient critter caught shedding Its skin
A fossil reveals that ancient animals shed their skin, just as insects and crustaceans do today.
- Ecosystems
Frogs get poison from ants
The skin of some frogs becomes poisonous after they eat certain kinds of ants.
- Brain
Charging up the brain for reading
Some kids can become better readers if they learn how written letters match up with speech sounds.
- Environment
Alien invasions
Around the world, plants, animals, fungi, and other life forms are ending up in places where they don't belong.
- Animals
Noisy boats may bother orcas
Whale watcher boats may be so noisy that killer whales must change their calls to be heard.
