Life
- Animals
A Sense of Danger
Can animals warn us if an earthquake or some other natural disaster is about to strike?
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- Environment
Saving wetlands
In Louisiana and elsewhere, wetlands are disappearing, threatening plant and animal life.
- Fossils
Dino Flesh from Fossil Bone
Scientists may have found dinosaur blood vessels and cells inside a fossilized leg bone.
- Animals
Elephant Mimics
Two African elephants may be the first land mammals other than primates to learn vocal imitations.
- Animals
Vampire Bats on the Run
Vampire bats on treadmills show a surprising, distinctive running style.
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- Animals
Python Hearts Pump Up
A Burmese python can increase the size of its heart by 40 percent in just two days.
- Climate
Arctic algae show climate change
Sediment from Arctic lakes shows that much of the Northern Hemisphere has been warming for many decades.
- Animals
Sleep Affects a Bird’s Singing
Young birds sing badly in the morning but do much better later in the day.
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