Fossils
Dinosaur 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
HS-LS4-5
Evaluate the evidence supporting claims that changes in environmental conditions may result in: (1) increases in the number of individuals of some species, (2) the emergence of new species over time, and (3) the extinction of other species.
More Stories in HS-LS4-5
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FossilsAn ancient hippo-sized reptile may have been a speedy beast
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Health & MedicineBringing COVID-19 vaccines to much of world is hard
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AnimalsA new chameleon species may be the world’s tiniest reptile
The newly described reptiles live in the northern forests of Madagascar. Deforestation there may also leave them on the brink of extinction.
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AnimalsHow do you build a centaur?
A centaur has the torso of a human and the body of a horse. It may sound cool, but it wouldn’t work very well.
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ArchaeologyHarsh Ice Age winters may have helped turn wolves into dogs
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Health & MedicineEarly details emerge about the new U.K. coronavirus variant
The variant may spread more easily from person to person. That could make continuing to wear masks all the more important, experts say.
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GeneticsScientists 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.
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ChemistryStinky 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.
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Health & MedicineA Hong Kong man got the new coronavirus twice
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