From Molecules to Organisms: Structures and Processes
- Animals
Animals can do ‘almost math’
Humans aren’t the only animals with a number sense. Scientists are trying to figure out where and when it evolved.
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How not to grin and bear it
Three teen researchers who took part in this year’s Broadcom MASTERS competition seek to help those who clench and grind their teeth.
- Brain
To reveal how the brain creates joy, start by tickling rats
Rats love a good tickle. Not only do they beg for more, but the action itself activates a part of the brain that detects touch, researchers find.
- Genetics
Scientists Say: eDNA
Animals may escape traps or nets, but they often leave DNA behind in their environment, giving scientists important clues.
- Brain
What makes a pretty face?
Beautiful faces are symmetrical and average. Do we prefer them because this makes them easier for our brains to process?
- Health & Medicine
Simpler way to screen for hidden hearing loss?
Many teens today walk around with undiagnosed hearing damage. But some Boston-based researchers have come up with a low-tech approach to screening these individuals so they can get help.
- Health & Medicine
‘Ringing’ in the ears may signal serious ear damage
A persistent ringing in the ears, also known as tinnitus, has become common in teens — and may point to eventual, permanent hearing loss.
- Animals
Speckled dino spurs debate about ancient animals’ colors
Structures found in fossil dinosaur skin may give clues to the creatures’ colors and how they lived. But not all scientists agree on how to interpret what they see.
- Chemistry
Milking chocolate for its health benefits
Researchers figure out how to give milk chocolate the same health benefits as dark chocolate. The secret ingredient is an extract from peanut skin.
- Health & Medicine
Could toothpaste give heart disease the brush-off?
Brushing with a toothpaste that dyes plaque green encourages people to remove more of it. This also lowered inflammation, which may cut someone’s risk of heart disease.
- Animals
Dino brain found ‘pickled’ in boggy swamp
Scientists claim to have identified the first fossil brain tissue from a dinosaur.
- Environment
Ocean of the future may make shrimp small and colorful
Carbon dioxide released into the air can end up in the ocean, making it more acidic. A teen showed that this acidification could shrink shrimp and make them more colorful.
