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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EarthNew beetle species found in fossil poop of this dino relative
Whole beetles preserved in fossilized reptilian poop suggest that ancient droppings may deserve a closer look.
By Nikk Ogasa -
FossilsDinosaur families appear to have lived in the Arctic year-round
Fossils of baby dinosaurs in northern Alaska challenge the idea that northern dinosaurs only spent their summers in the high Arctic.
By Nikk Ogasa -
FossilsAncient creature revealed as lizard, not a teeny dinosaur
CT scans of 99-million-year-old fossils of hummingbird-sized specimens trapped in amber reveal a number of lizardlike features.
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ArchaeologyFossils unearthed in Israel reveal possible new human ancestor
They come from a previously unknown Stone Age group that may represent a complex mashup of early members of our genus Homo.
By Bruce Bower -
AnimalsLet’s learn about dinosaurs’ fearsome neighbors
Dinosaurs may get much of our attention, but there were plenty of other interesting critters during the Age of Reptiles, including our mammal ancestors.
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AnimalsThe secret to T. rex‘s incredible biting force is at last revealed
The force of a T. rex bite was roughly 6 metric tons. A new study points to what’s behind that mighty force.
By Sid Perkins -
GeneticsEurope’s ancient humans often hooked up with Neandertals
DNA from ancient bones shows humans and Neandertals were regularly mixing genes by about 45,000 years ago.
By Bruce Bower -
FossilsRhinos, camels and bone-crushing dogs once roamed Nebraska
Scientists digging into the remnants of an ancient watering hole in Nebraska discovered evidence of an Africa-like savanna, complete with rhinos.
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FossilsScientists Say: Dinosaur
Dinosaurs emerged between 243 and 233 million years ago. While some died out 66 million years ago, others are still with us — birds.
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FossilsAn ancient hippo-sized reptile may have been a speedy beast
An Anteosaurus was a hefty reptile with a large snout. Its fossil skull hints that it may have moved fast for its time.
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AnimalsGiant worms may have hidden beneath the ancient seafloor to ambush prey
Twenty-million-year-old tunnels unearthed in Taiwan may have been home to creatures similar to today’s monstrous bobbit worms.
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ArchaeologyThis prehistoric woman from Peru hunted big game
Women in the Americas speared large prey as early as 9,000 years ago, new archaeological evidence suggests.
By Bruce Bower