Animals
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LifeOne hummingbird survives cold nights by nearly freezing stiff
To survive a freezing night, hummingbirds in the Andes mountains go very still, slow their heart rate and let their body temperature plummet.
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AnimalsWhales get a second life as deep-sea buffets
When a whale dies and sinks to the seafloor, it becomes a feast for hundreds of different types of creatures.
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Health & MedicineLet’s learn about bones
Bones hold us up and help us fight gravity with every step. They also make blood cells, hormones and more.
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FossilsThis ancient reptile’s last meal may have truly been a killer
An ichthyosaur’s eyes were too big for its stomach. And that may have led to this ancient reptile’s death.
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ArchaeologySee what these animal mummies are keeping under wraps
A new method of 3-D scanning mummified animals reveals life and death details of a snake, a bird and a cat that lived in ancient Egypt.
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AnimalsA wasp nibbled a baby bird for breakfast
Scientists found an injured baby bird in a nest they were studying. The culprit wasn’t another bird or a reptile. It was a wasp.
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LifeLet’s learn about alligators and crocodiles
Alligators and crocodiles seem similar — but they live in different places and look different, too.
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AnimalsOne tiny sea parasite survives 200 times atmospheric pressure
Known as the seal louse, this tiny insect can survive deep oceanic dives on its mobile home, a marine mammal.
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AnimalsWhale blowholes don’t keep out seawater
Whales’ blowholes aren’t as protective as scientists had thought. They not only can let in water but also pollutants.
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LifeScientists Say: Amphibian
Amphibians are ectotherms that live dual lives — they start off in water, breathing with gills, and end up breathing air with lungs.
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AnimalsQuacks and toots help young honeybee queens avoid deadly duels
It’s not just ducks that quack. Honey bees do it too. They also toot. Researchers eavesdropped on hives to find out why.
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AnimalsA single chemical may draw lonely locusts into a hungry swarm
Swarms of locusts can destroy crops. Scientists have discovered a chemical that might make locusts come together in huge hungry swarms.