Life
- Animals
Big Mimics: African elephants can learn to copy sounds
Two captive African elephants—one rumbling like a truck and the other chirping like a different elephant species—show they may be the first land mammals other than primates to learn vocal imitations.
- Paleontology
Old Softy: Tyrannosaurus fossil yields flexible tissue
Scientists analyzing fragments of a Tyrannosaurus rex's leg bone have recovered soft, pliable material, including structures that apparently are cells and blood vessels.
- Animals
Ant larvae sway to say, ‘Feed me!’
The most detailed study yet of body language of ant larvae translates a swaying motion as begging for food and a chance at a better future.
- Animals
Cops with Six Legs
Insects commit crimes against their colonies, and researchers are taking a closer look at how these six-legged criminals get punished.
- Animals
Vampires Run: Bats on treadmills show high-speed gait
The first test of vampire bats on a treadmill shows that they've evolved their own style of running.
- Animals
Picky-eater termites choose good vibes
Good vibrations may have a lot to do with which pieces of wood a termite attacks.
- Animals
Shortcut to Big Heart: Pythons build cardiac muscle in record time
A Burmese python can boost its cardiac fitness—by bulking up its heart muscle 40 percent in two days—just by eating.
- Ecosystems
Return of the Wetlands? Restoration possible for some Iraqi marshes
Field studies conducted in Iraq last year suggest that some of the region's ecologically devastated marshes could be returned to health.
- Animals
The Old Crowd: Minke whales have long thrived in Antarctic seas
Genetic studies of whale meat from Tokyo grocery stores appear to strengthen the case for protecting Antarctica's minke whales against renewed hunting.
- Animals
Hour of Babble: Young birds sing badly in the morning
Young zebra finches do badly at song practice for the first few hours after they wake up but then recover, and even improve, their musical skills.
- Animals
Oops! Grab That Trunk: High-diving ants swing back toward their tree
Certain tree-dwelling ants can direct their descent well enough to veer toward tree trunks and climb back home.
- Paleontology
Groovy Bones: Mammalian ear structure evolved more than once
Fossils of an ancient egg-laying mammal indicate that the characteristic configuration of the bones in all living mammals' ears arose independently at least twice during the group's evolution.
