Biological Evolution: Unity and Diversity
- Fossils
Newfound fossil is not a teen T. rex but a whole new species
Now known as Nanotyrannus, this mini dino could have roamed the late Cretaceous alongside T. rex.
- Humans
Smoke-dried mummies found in Southeast Asia are the oldest known
The corpses had been slow-dried over fires 12,000 years ago — millennia before Egyptians began mummifying their dead.
- Fossils
Baby pterosaurs likely died in violent Jurassic storms
Two hatchlings with broken arm bones point to ancient storms as the cause of mass casualties now preserved in Germany’s Solnhofen Limestone.
- Fossils
Fossil teeth reveal some dinos were fussy eaters
The type of calcium in those teeth points to what herbivores preferred to eat — whether soft leaves, rough twigs or something else.
- Archaeology
Knotted strands of 500-year-old hair tell a surprising story
Used in a device called a khipu, the hair reveals the owner’s simple diet. Those data now suggest that in Incan society, even some commoners kept records.
- Plants
Potatoes and tomatoes share a surprising history
Today’s potato likely came from a chance cross between an ancient tomato and a spud-less potato-plant lookalike, research shows.
- 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.
- Animals
Dinosaurs are still alive. Today, we call them birds
Birds don’t look like the scaly giants of Jurassic World. But fossils are revealing how these modern-day dinosaurs descended from ancient reptiles.
- Animals
Weird? These bat toes can glow greenish-blue
Hairy bristles on the toes of Mexican free-tailed bats fluoresce under UV light. The reason is a mystery.
- 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.
