HS-LS4-1
Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.
- Animals
Scientists Say: Evolution
Evolution is how species change over time. Individuals in the group vary, and some will pass on their genes. Over time, the whole species changes.
- Animals
Attack of the inner-cannibal mega-shark
The outsized megalodon was a fierce terror that chewed its way across the oceans. It learned to kill even before it was born.
- Genetics
Some Neandertal genes may up the risk of severe COVID-19
Most of the affected people descend from communities in South Asia or live in Europe today.
- Animals
See what these animal mummies are keeping under wraps
A new method of 3-D scanning mummified animals reveals life and death details of a snake, a bird and a cat that lived in ancient Egypt.
- Chemistry
Stinky success: Scientists identify the chemistry of B.O.
They turned up the enzyme in bacteria behind that underarm stench. Understanding how it works could pave the way to new types of deodorant.
- Animals
American crocs seem to descend from kin that crossed the Atlantic
A fossil hints that early crocodiles crossed over from Africa, millions of years ago, to colonize a new land.
- Archaeology
Let’s learn about early humans
Homo sapiens are the last member left of our genus. But many other species of early humans existed before us.
- Chemistry
Early dinosaurs may have laid soft-shelled eggs
Scientists for the first time have turned up evidence of fossils from soft-shelled dinosaur eggs. This has scientists rethinking how dinosaur eggs evolved.
- Fossils
These crocodile ancestors lived a two-legged life
A set of 106-million year old footprints show a crocodile relative appears to have walked on two legs.
- Animals
Tube-dwelling sea creatures may be oldest known parasites
A fossil bed of clam-like animals from a half-billion years ago is covered in tube-dwelling organisms. These suggest the tube dwellers were parasites, scientists now report.
- Archaeology
This cave hosted the oldest known human remains in Europe
Bone fragments, tools and other finds in Bulgaria suggest that Homo sapiens moved rapidly into Eurasia as early as 46,000 years ago.
- Fossils
Saber-toothed anchovy relatives were once fearsome hunters
Today’s plankton-eating anchovies sport tiny teeth. But their ancient kin were armed with spiky lower teeth and a giant upper sabertooth.
