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.
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ArchaeologyNeandertals used fire-making tools 400,000 years ago
Flint, iron pyrite and fire residues found at an ancient site in England offer the earliest clear evidence of people lighting fires.
By Jay Bennett -
AnimalsRNA from mummified woolly mammoth is the oldest ever recovered
Genetic details from the animal, named Yuka, give a snapshot into its last moments alive. The mammoth had been preserved in permafrost for 40,000 years.
By Meghan Rosen -
FossilsHere’s why ammolite gems have a rainbow shimmer
The fossils’ fabulous colors arise from delicate assemblies of crystal plates.
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FossilsNewfound fossil is not a teen T. rex but a whole new species
Now known as Nanotyrannus, this mini dino could have roamed the late Cretaceous alongside T. rex.
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HumansSmoke-dried mummies found in Southeast Asia are the oldest known
The corpses had been slow-dried over fires 12,000 years ago — millennia before Egyptians began mummifying their dead.
By Bruce Bower -
FossilsBaby pterosaurs likely died in violent Jurassic storms
Two hatchlings with broken arm bones point to ancient storms as the cause of mass casualties now preserved in Germany’s Solnhofen Limestone.
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FossilsFossil teeth reveal some dinos were fussy eaters
The type of calcium in those teeth points to what herbivores preferred to eat — whether soft leaves, rough twigs or something else.
By Tom Metcalfe -
ArchaeologyKnotted strands of 500-year-old hair tell a surprising story
Used in a device called a khipu, the hair reveals the owner’s simple diet. Those data now suggest that in Incan society, even some commoners kept records.
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ArchaeologyThis may be the oldest, most complete Neandertal fingerprint ever seen
The print appears in a red ochre dot, which a Neandertal left on the ‘nose’ of a facelike rock roughly 43,000 years ago.
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LifeFungi have been ‘zombifying’ insects for 99 million years
Two bits of ancient amber sitting in a lab basement hold evidence of a fungus that’s become famous for controlling the minds of its victims.
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ArchaeologyRoman gladiators really fought big cats, ancient bite marks suggest
This is the first skeletal evidence of an ancient Roman gladiator show — or execution — involving an exotic animal.
By Bruce Bower -
AnimalsCan this ‘woolly mouse’ help bring back extinct mammoths?
Scientists created mice with woolly mammoth–like traits. But that doesn’t mean we’re close to bringing back woolly mammoths.
By Jason Bittel