Life
- Animals
Toss and slap — how dolphins disarm a dangerous meal
Octopus can be a deadly meal, especially if you don’t have hands to cut it up. But dolphins in Australia have figured out how to eat octopus without choking to death.
- Brain
Analyze This: Sleep patterns vary widely across the world
Data on four very different groups of people show that sleep patterns vary based on the local environment, the culture and daily schedules.
- Health & Medicine
This mix turns pink when sunscreen wears thin
Many people know to put on sunscreen. Remembering to put more on is harder. A teen invented an indicator that glows pink when it’s time to reapply.
- Microbes
Tweaked germs glow to pinpoint buried landmines
Finding landmines could become much safer with a new technology. It uses genetically modified bacteria that glow under laser light.
- Life
Scientists Say: Mitochondrion
Mitochondria are structures inside cells that converts certain chemicals into adenosine triphosphate — a molecule cells use as energy.
- Health & Medicine
Library books could come with a side of germs
People transfer microbes to most of the things we touch. Does that extend to our library books? A teen did an experiment to find out.
- Animals
These killer whales exhale sickening germs
A group of endangered killer whales are exhaling disease-causing germs. Researchers worry these microbes could make the animals sick.
- Animals
Flu fighter found in frog slime
A protein found in the mucus secretions of an Indian frog can take down a type of flu virus, a new study finds.
- Archaeology
This hominid may have shared Earth with humans
Newfound fossils in South Africa point to a far more recent age for Homo naledi than had been accepted. If correct, this hominid might have coexisted with humans — even interacted with our species.
- Brain
Scientists Say: Hippocampus
The hippocampus is an area of the brain that is essential for forming new memories.
- Animals
Scientists are rethinking the dinosaur family tree
The dinosaur family tree consists of three main branches. Or maybe not. A new study suggests a rewrite is due.
- Brain
Two brain areas team up to make mental maps
To find your way around, you need to remember where you are and plan ahead. A new study shows there’s a brain area for each task.
