Biological Evolution: Unity and Diversity
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- Animals
Churk: Not for Thanksgiving
Here’s what happens when livestock breeders cross a chicken and a turkey
- Animals
The secret songs of giant beavers
Scientists discover a noisemaking chamber in the extinct animal’s skull.
- Fossils
Dino teeth tell a traveling tale
Dental evidence from sauropods suggests the mighty beasts migrated for food.
- Humans
Mummies share their secrets
Cutting-edge technology such as CT, or CAT, scans and endoscopes are allowing scientists to see not just what’s underneath the wrappings but also what’s inside a mummy’s body.
- Humans
Old bones ignite fresh debate
Scientists try to understand how 2 million-year-old fossils fit among ancient species.
- Animals
When the giant ants went marching
A new study of an ancient fossil suggests that 50 million years ago, supersized ants went on a cross-continental trek.
- Fossils
Dangerous dinos in the dark
Eye fossils reveal predatory dinosaurs’ preference for hunting at night.
- Environment
Busy bacteria leave big mark
Earth’s earliest life-forms built mounds on an Antarctic lake bottom.
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- Animals
Eating can be skin deep
In the laboratory, bottom-dwelling hagfish absorb nutrients through the skin.
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