HS-LS4-1
Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.
- Archaeology
Ancient footprints surface in Britain
There are hints they could have been made by ancestors of Neandertals.
- Animals
The secret songs of giant beavers
Scientists discover a noisemaking chamber in the extinct animal’s skull.
- 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.
- Animals
Eating can be skin deep
In the laboratory, bottom-dwelling hagfish absorb nutrients through the skin.
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- Fossils
Big fish in ancient waters
Fossils have revealed an ancient, oversized relative of modern-day swordfish.
- Fossils
Ancient critter caught shedding Its skin
A fossil reveals that ancient animals shed their skin, just as insects and crustaceans do today.
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