Life
- Animals
Retaking Flight: Some insects that didn’t use it didn’t lose it
Stick insects may have done what biologists once thought was impossible: lose something as complicated as a wing in the course of evolution but recover it millions of years later.
- Ecosystems
Why didn’t the beetle cross the road?
Beetle populations confined to specific forest areas by roads seem to have lost some of their genetic diversity.
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- Paleontology
Overlooked fossil spread first feathers
A new look at a fossil that had been lying in a drawer in Moscow for nearly 30 years has uncovered the oldest known feathered animal.
- Animals
Stalking Larvae: How an ancient sea creature grows up
Scientists have finally observed living larvae of a sea lily, an ancient marine invertebrate related to starfish.
- Animals
Camelid Comeback
The future of vicuñas in South America and wild camels in Asia hinges on decisions being made now about their management.
- Animals
Homing Lobsters: Fancy navigation, for an invertebrate
Spiny lobsters are the first animals without backbones to pass tests for the orienteering power called true navigation.
- Animals
Ant Traffic Flow: Raiding swarms with few rules avoid gridlock
The 200,000 virtually blind army ants using a single trail to swarm out to a raid and return home with the booty naturally develop three traffic lanes, and a study now shows that simple individual behavior makes the pattern.
- Animals
Ant Traffic Flow: Raiding swarms with few rules avoid gridlock
The 200,000 virtually blind army ants using a single trail to swarm out to a raid and return home with the booty naturally develop three traffic lanes, and a study now shows that simple individual behavior makes the pattern.
- Paleontology
New fossil weighs in on primate origins
A 55-million-year-old primate skeleton found in Wyoming indicates that the common ancestor of modern monkeys, apes, and people was built primarily for hanging tightly onto tree branches.
- Paleontology
New fossil weighs in on primate origins
A 55-million-year-old primate skeleton found in Wyoming indicates that the common ancestor of modern monkeys, apes, and people was built primarily for hanging tightly onto tree branches.
- Animals
Single singing male toad seeks same
Male spadefoot toads of the Spea multiplicata species evaluate male competitors by the same criterion females use.
