Search Results for: Vertebrates
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1,548 results
1,548 results for: Vertebrates
- Animals
Regeneration of fins and limbs relies on a shared cellular playbook
The findings strengthen the case that regeneration is an old trait, offering insights into how complex tissues rebuild themselves.
- Animals
Giant, kraken-like octopuses may have ruled the Cretaceous deep
Some octopuses that lived over 72 million years ago were as long as whales. These huge predators may have been the largest invertebrates ever.
- 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.
- 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.
- Paleontology
Mummified reptile hints at the origins of how we breathe
A cave preserved two animals’ rib cages, cartilage and even traces of protein, revealing a flexible breathing apparatus like that of today’s land dwellers.
- 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.
- 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.
- 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.
- 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
How Greenland sharks defy aging
When it comes to bucking the biological ails of aging, humans could learn something from Greenland sharks.
- 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.
