Fossils
New clues about dino speed come from birds strutting through mud
Fossilized footprints can help calculate how fast dinosaurs moved. But tests with guinea fowl show that past estimates might not be right.
Biological Evolution: Unity and Diversity
More Stories in Biological Evolution: Unity and Diversity
- Genetics
A protein in sweat may protect people from Lyme disease
That protein stopped the disease-causing bacterium from growing in lab dishes or infecting mice.
- Tech
Bioelectronics research wins top award at 2024 Regeneron ISEF
Three grand-award winners each took home at least $50,000. Hundreds more teens shared more than $9 million in prizes at the international competition.
- Animals
Elusive worm-lizards sport weird, spooky skulls
CT scans of these mysterious creatures turned up bizarre internal features. They could offer clues about amphisbaenians’ largely unknown behavior.
- Genetics
Scientists Say: Genetic Engineering
Genetic engineering involves adding, changing or removing certain pieces of DNA from a living thing to give it desired traits.
- Animals
Among mammals, males aren’t usually bigger than females
In a study of more than 400 mammal species, less than half have males that are heavier than females.
- Animals
Let’s learn about animals’ bizarre sleep schedules
From reindeer that snooze while chewing to penguins that take thousands of naps each day, the animal kingdom has some truly weird sleep patterns.
- Tech
Artificial intelligence helped design a new type of battery
Supercomputing and AI cut the early discovery steps from decades to just 80 hours. The process led to a new solid electrolyte.
- Animals
Scientists Say: Megalodon
The extinct megalodon (Otodus megalodon) was the largest shark to ever prowl the oceans.
- Animals
This frog is the world’s smallest known vertebrate
Neither fleas nor toads, Brazilian flea toads are almost flea-sized. These mini frogs are small enough to fit on a pinkie fingernail.
