Search Results for: Vertebrates
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1,558 results
1,558 results for: Vertebrates
- Animals
Spider silk-making organs evolved due to a 400-million-year-old genetic oops
An ancient ancestor of spiders and relatives doubled its genome about 400 million years ago, setting the stage for the evolution of spinnerets.
- Life
Talking dogs and chatty cats could one day ‘speak’ in our language
Advances in decoding animal sounds might someday make animal translators a possibility.
- Paleontology
If wings came before flight, what were they for?
Scientists use simulated dinosaurs to trigger real insect brains and test how wings originally evolved.
- Ecosystems
Food chains in Caribbean coral reefs are getting shorter
Shorter food chains could mean reefs are less able to weather changes in food availability, threatening an already vulnerable ecosystem.
- Genetics
Why African striped mice can be the best of dads — or the worst
Environmental cues can flip a molecular switch in the brain, turning males from caregivers to killers.
- Genetics
The Amazon molly — a sex-skipping fish — hacks evolution
The Amazon molly reproduces without sex. A genomic copy-and-paste trick called gene conversion may explain how it avoids evolutionary meltdown.
- Animals
This lizard can tolerate extreme levels of lead
Cuban brown anoles have the highest blood lead levels of any vertebrate known — three times that of the previous record holder, the Nile crocodile.
- Animals
Huge relatives of white sharks lived earlier than thought
Lamniform sharks such as great whites and tiger sharks are famous for their size. The first such giants evolved 15 million years earlier than thought.
- Animals
How Greenland sharks defy aging
When it comes to bucking the biological ails of aging, humans could learn something from Greenland sharks.
- Animals
What the longest woolly rhino horn tells us about the beasts’ biology
A nearly 20,000-year-old woolly rhino horn reveals the extinct herbivores lived as long as modern-day rhinos, despite harsher Ice Age conditions.
- Animals
This ‘ghost shark’ has teeth on its forehead
Spotted ratfish, or “ghost sharks,” have forehead teeth that help them grasp onto mates. It’s the first time teeth have been found outside of a mouth.
- Paleontology
An ancient reptile’s fossilized skin reveals how it swam like a seal
A reptile fossil is the first of its kind with skin and partially webbed feet, possibly showing how later species like plesiosaurs adapted to water.
