Search Results for: Vertebrates
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1,534 results
1,534 results for: Vertebrates
- Paleontology
These crocodile-like beasts reached the Caribbean, outlasting mainland kin
Knife-toothed reptiles called sebecids went extinct on the mainland 10 million years ago. New fossil evidence puts them on an island 4 million years ago.
- Animals
The mystery of how iguanas crossed the Pacific Ocean may be solved
The iguanas' 8,000-kilometer trip — one-fifth of the Earth’s circumference — is the longest made by a flightless land vertebrate.
- Paleontology
Could Spinosaurus swim? The fierce dinosaur ignites debate
Researchers are still divided about whether Spinosaurus was a swimmer or a wader. What’s clear is that confirming the first swimming dinosaur would be a game-changer.
- Animals
Poop is on the menu for a surprising number of animals
A new tally finds dozens of species giving food a second go-round, from babies boosting their microbiomes to adults seeking easier-to-access nutrition.
- Neuroscience
Lampreys have ‘fight or flight’ cells, challenging ideas about nervous system evolution
The discovery of sympathetic nervous system cells in lampreys draws a closer tie between the animal and complex vertebrates — such as humans.
- Life
A skull found in Egypt shows this top predator stalked ancient Africa
Archaeologists uncovered a fossilized skull of an ancient sharp-toothed predator that likely hunted early elephants and primates.
- Animals
The Brazilian flea toad may be the world’s smallest vertebrate
Brazilian flea toads are neither a flea nor a toad, but they are almost flea-sized. The frogs are small enough to fit on a pinkie fingernail.
- Animals
Fever’s link with a key kind of immunity is surprisingly ancient
When sick, Nile tilapia seek warmer water. That behavioral fever triggers a specialized immune response, hinting the connection evolved long ago.
- Life
These scientific feats set new records in 2024
Noteworthy findings include jumbo black hole jets, an ultrapetite frog, ancient asteroid remnants and more.
- Anthropology
Denisovans inhabited Taiwan, new fossil evidence suggests
An expanding geographic range for these close Neandertal relatives leaves Denisovans' evolutionary status uncertain.
- Animals
More new geckos have been found hiding in Southeast Asia’s limestone towers
Nearly 200 new gecko species found in living in karst landscapes reveal the rugged regions as dynamic areas of speciation.
- Animals
Giant hornets have been sighted in Europe for the first time
Four southern giant hornets have turned up in Spain. Similar stingers, known for honeybee attacks, had the Pacific Northwest on edge a few years ago.
