Search Results for: Vertebrates
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1,539 results
1,539 results for: Vertebrates
- Paleontology
Oldest known lizard fossil pushes group’s origins back 75 million years
CT scan reveals hidden identity of an unusual lizard fossil found years ago in the Italian Alps.
- Life
Skeletons come in many shapes and sizes
In Skeletons, two paleobiologists recount how and why skeletons evolved, as well as the variety of forms they take and the many purposes they serve.
- Animals
This ancient fowl bit like a dinosaur and pecked like a bird
A new fossil of Ichthyornis dispar helped scientists create a 3-D reconstruction of the ancient bird’s skull, shedding light on early bird evolution.
- Paleontology
This ancient lizard may have watched the world through four eyes
A lizard that lived 50 million years ago had both a third and a fourth eye.
- Neuroscience
The wiring for walking developed long before fish left the sea
These strange walking fish might teach us about the evolutionary origins of our own ability to walk.
- Paleontology
New fossils are redefining what makes a dinosaur
While some researchers question what characteristics define the dinosaurs, others are uprooting the dino family tree altogether.
- Animals
Robot fish shows how the deepest vertebrate in the sea takes the pressure
Tests with a robot snailfish reveal why the deep-sea fish has mysterious goo in its body.
- Animals
Specialized protein helps these ground squirrels resist the cold
A less active cold-sensing protein explains, in part, why some hibernating ground squirrels are more tolerant of chilly conditions than the animals’ nonhibernating kin.
- Animals
In marine mammals’ battle of the sexes, vaginal folds can make the difference
Patricia Brennan and colleagues found certain female ocean mammals have vaginal folds that give them an advantage in mating
- Animals
This ancient marsupial lion had an early version of ‘bolt-cutter’ teeth
Extinct dog-sized predator crunched with unusual slicers toward the back of its jaw.
- Paleontology
This new dinosaur species was one odd duck
Weird dino swimmer had flipperlike limbs and a swanlike neck.
- Animals
Jackpot of fossilized pterosaur eggs unearthed in China
A treasure trove of pterosaur eggs and embryos gives tantalizing clues to the winged reptile’s early development.
