MS-LS4-1
Analyze and interpret data for patterns in the fossil record that document the existence, diversity, extinction, and change of life forms throughout the history of life on Earth under the assumption that natural laws operate today as in the past.
-
FossilsReviving dinosaurs
With the help of computers, researchers are getting a pretty good idea of how these ancient creatures moved, walked and ate.
By Sid Perkins -
ArchaeologyAncient footprints surface in Britain
There are hints they could have been made by ancestors of Neandertals.
By Bruce Bower -
FossilsWhere do humans come from?
Some scientists propose a newfound South African species as the most likely ancestor of the line that led to humans. But not everyone accepts that this is where it all began.
By Bruce Bower -
AnimalsThe secret songs of giant beavers
Scientists discover a noisemaking chamber in the extinct animal’s skull.
-
FossilsDino teeth tell a traveling tale
Dental evidence from sauropods suggests the mighty beasts migrated for food.
-
HumansMummies 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.
-
HumansOld bones ignite fresh debate
Scientists try to understand how 2 million-year-old fossils fit among ancient species.
-
AnimalsWhen 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.
-
EnvironmentBusy bacteria leave big mark
Earth’s earliest life-forms built mounds on an Antarctic lake bottom.
-
FossilsDino Flesh from Fossil Bone
Scientists may have found dinosaur blood vessels and cells inside a fossilized leg bone.
By Emily Sohn -
FossilsBig fish in ancient waters
Fossils have revealed an ancient, oversized relative of modern-day swordfish.
By Emily Sohn -
FossilsDino bite leaves a tooth
Meat-eating dinosaurs sometimes feasted on flying reptiles.
By Emily Sohn