MS-LS4-6
Use mathematical representations to support explanations of how natural selection may lead to increases and decreases of specific traits in populations over time.
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Fossils
Ancient ‘ManBearPig’ mammal lived fast — and died young
Developing in the womb for a while — but being born ready to take on the world — may have helped post-dinosaur mammals rise to dominance.
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Health & Medicine
Dogs and other animals could aid the spread of monkeypox
Now that monkeypox has spread to a dog, researchers fear other species could help the virus become widespread outside of Africa for the first time.
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Plants
This pitcher plant lures insects into underground deathtraps
Scientists didn’t expect the carnivorous, eggplant-shaped pitchers to be sturdy enough to grow embedded in the soil.
By Meghan Rosen -
Animals
Butterfly ‘tails’ might be part of an escape tactic
Slender, tail-like extensions on their wings may help some butterflies survive attacks by hungry predators.
By Jake Buehler -
Tech
Virtual critters evolve bodies that help them learn
A combination of evolution and learning may lead to more intelligent and agile robots.
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Humans
Scientists Say: Denisovan
The Denisovans were a recently discovered population of ancient hominids.
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Fossils
Cool Jobs: Bringing paleontology to the people
From museums to movies, these three paleontologists totally rock their connections with the public.
By Beth Geiger -
Animals
A dog’s breed doesn’t say much about its behavior
Many people associate dog breeds with specific behavioral traits. But breed appears to account for only about 9 percent of behavioral differences.
By Anna Gibbs -
Animals
Surprise! Sixteen tiny wasp species found masquerading as one
Scientists used new and old tools to overturn 160-year-old ideas about this wasp. They show you can’t tell a wasp by its looks.
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Fossils
One of the earliest meat-eating mammals was saber-toothed
Millions of years before the evolution of saber-toothed cats, a newly discovered "hypercarnivore" prowled the forests of what is now San Diego.
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Life
Explainer: What is an endangered species?
Threats such as climate change and habitat loss can put species at risk of going extinct. Different words describe that risk.
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Animals
A new drug mix helps frogs regrow amputated legs
The treatment helped frogs grow working limbs useful for swimming, standing and kicking. It’ll be a while before people can do that.