Animals
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FossilsT. rex may have hidden its teeth behind lips
Dinosaurs like Tyrannosaurus have long been portrayed with their big teeth bared. But new research suggests this wasn’t so.
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Materials ScienceAnalyze This: A new fabric mimics polar bears’ pelts for warmth
With layers that work like polar bears’ skin and fur, a material absorbs light and keeps it from escaping.
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FossilsThis ancient bird rocked a head like a T. rex
This bird from 120 million years ago had a head like a dinosaur and a body more like today’s birds.
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FossilsAncient jellyfish? Upside down this one looks like something else
A new look at an ancient sea animal called Essexella suggests it may have been a type of burrowing sea anemone, not a floating jelly.
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TechA device spots and counts honeybees hosting a dangerous parasite
At Regeneron ISEF, three teens debuted an infrared system to detect honeybees carrying mites. It can show beekeepers when a colony needs to be treated.
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BrainScientists Say: Connectome
A connectome is a diagram of the cellular highways that carry information in the brain.
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AnimalsRats can bop their heads to a musical beat
Rats’ rhythmic response to human music doesn’t mean they like to dance. But it may shed light on how brains evolved to perceive rhythm.
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EcosystemsScientists Say: Food web
All the species in an ecosystem and the feeding relationships between them get summed up with this handy picture.
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BrainScientists mapped every nerve cell in this insect brain
Researchers have built a “connectivity map” of all the nerve cells in the larval fruit fly brain and how they link together.
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Health & MedicineHumans might be able to hibernate during space travel
Scientists are studying how animals hibernate and developing new technologies to help humans sleep through space travel.
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AnimalsHow to tell if cats are having fun — or if fur is flying
Quietly wrestling cats may be hard at play. But if they’re chasing and yowling, you might have a cat fight on your hands.
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AnimalsPeople and animals sometimes team up to hunt for food
Dolphins working with people to catch fish recently made a big splash. But humans have a long history of cooperating with other animals.