Biological Evolution: Unity and Diversity
- Fossils
T. rex may have hidden its teeth behind lips
Dinosaurs like Tyrannosaurus have long been portrayed with their big teeth bared. But new research suggests this wasn’t so.
- Fossils
Ancient jellyfish? Upside down this one looks like something else
A new look at an ancient sea animal called Essexella suggests it may have been a type of burrowing sea anemone, not a floating jelly.
- Health & Medicine
New patch might replace some finger-prick testing of blood sugar
A finalist at Regeneron ISEF created a wearable patch that turns yellow when someone’s blood-sugar level gets high enough to need an insulin shot.
- Animals
Pokémon ‘evolution’ looks more like metamorphosis
Pokémon “evolve” into larger, more powerful forms within seconds, but this evolution more closely resembles another biological process — metamorphosis.
- Animals
Sleeping glass frogs go into stealth mode by hiding red blood cells
Glass frogs snoozing among leaves blend in by hiding almost all their red blood cells in their liver.
- Animals
Analyze This: Puppies naturally mimic human actions
Unlike cats, whose ancestors hunted alone, dogs evolved from a species that hunted in packs. Being social might explain why pups copy humans.
- Animals
This biologist uses microwave radiation to save endangered species
Pei-Chih Lee works to preserve genetic material that can help researchers learn more about endangered animals, such as pandas and clouded leopards.
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These lemurs take nose-picking to a new level
A nose-picking aye-aye’s spindly middle digit probably pokes all the way into the back of the throat, CT scans show.
- Animals
When it’s hot, echidnas blow snot bubbles to cool off
These spiky Australian mammals have a trick to moisten their noses, allowing them to survive hot temperatures that should kill them.
- Health & Medicine
Let’s learn about allergies
Allergies are caused by the body’s immune system overreacting to harmless substances.
- Physics
In a breakthrough experiment, fusion gave off more energy than it used
The sun creates energy through nuclear fusion. Now scientists have too. This achievement raises hopes for developing a new type of clean energy.
- Animals
How can Baby Yoda be 50 years old?
Animals with wings, big bodies or other protections from predators are more likely to evolve long lifespans.
