HS-LS1-3
Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.
- Animals
Scientists say: Hibernaculum
This week’s word is hibernaculum, the word scientists use to describe the place where an animal goes to hibernate.
- Brain
Learning rewires the brain
Brain cells actually change shape as we learn. It’s one way we cement new knowledge. And much of the action happens as we sleep.
- Fossils
Hot-blooded dinos? Try lukewarm
New study finds these reptiles may have had an internal furnace that sort of resembled some sharks. It appeared to run neither hot nor cold.
- Genetics
Owww! The science of pain
No one likes pain, but it keeps us alive. That’s why scientists want to learn how best to coexist with this complicated and still somewhat mysterious sensation.
- Animals
Move over cheetah: Mite sets new speed record
A super-speedy species sprints faster than any other land animal — for its size, a new study finds. Scientists may someday tap this tiny mite’s technique to create robots and other devices that zip around at sensational speeds!
- Brain
‘Study drugs’ can be dangerous
The misuse of these ADHD medicines not only constitutes cheating, but they can become addictive and can mess with your head.
- Health & Medicine
Explainer: The teenage body clock
Around puberty, a change in the body clock of adolescents and teens makes it hard for them to fall asleep as early as they used to.
- Brain
Respecting the body’s clocks
Daily rhythms affect everything from the time we wake to how well we perform in sports.
- Brain
The teenage brain
Adolescence triggers brain — and behavioral — changes that few kids or adults understand.
- Science & Society
Introducing the 2011 Nobel Prize winners
Scientists in 2011 won for making unexpected discoveries about crystals, the human body and the universe.
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