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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AnimalsA love of small mammals drives this scientist
Alexis Mychajliw’s science is driven by her love of animals. She now looks to tar pits and fossilized poop to understand ancient ecosystems.
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ArchaeologyAmerican democracy arrived long before Columbus did
Indigenous peoples of the Americas developed self-rule long before the pilgrims arrived or the U.S. Constitution was written.
By Bruce Bower -
HumansLet’s learn about Neandertals
Neandertals are an extinct species closely related to modern humans. They made tools and jewelry, controlled fires and cared for their sick.
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FossilsAn ancient ichthyosaur graveyard may have been a breeding ground
Some 230 million years ago, huge dolphin-like reptiles appear to have gathered to breed in safe waters, just as many whales do today.
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ArchaeologyNeandertals were a lot like our human ancestors
From toolmaking to healthcare, new research finds that Neandertals shared many cultural and social similarities with our human ancestors.
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FossilsLet’s learn about pterosaurs
These ancient flying reptiles were not dinosaurs, but they were close relatives.
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HumansThis ancient ivory comb reveals a wish to be free of lice
The comb bears the earliest known complete sentence written in a phonetic alphabet, researchers say.
By Freda Kreier -
ArchaeologyKing Tut’s tomb still holds secrets 100 years after its discovery
New details of Tut’s story are still coming to light. Here are three things to know on the 100th anniversary of his tomb’s discovery.
By Bruce Bower -
FossilsSprinting reptiles may have been forerunners of soaring pterosaurs
A new analysis of an old fossil supports the idea that winged pterosaurs evolved from swift and tiny two-legged ancestors.
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GeneticsExamining Neandertal and Denisovan DNA wins a 2022 Nobel Prize
Svante Pääbo figured out how to examine the genetic material from these hominid ‘cousins’ of modern humans.
By Tina Hesman Saey and Aimee Cunningham -
AnimalsBizarre ancient critter has spines but no anus
The spiny discovery moves this minion lookalike off a distant limb on the human family tree.
By Anna Gibbs -
AnimalsAnalyze This: Bulky plesiosaurs may not have been bad swimmers after all
Long-necked plesiosaurs were thought to be slow swimmers. But new research suggests the animals’ large size helped them overcome water resistance.