Search Results for: Vertebrates
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1,543 results
1,543 results for: Vertebrates
- Animals
Slow, cold reptiles may breathe like energetic birds
Finding birdlike air patterns in lungs of crocodilians and in more distantly related lizards raises the possibility that one-way airflow evolved far earlier than birds themselves did.
- Paleontology
300 million-year-old giant shark swam the Texas seas
Fossil find shows oldest known ‘supershark,’ about the size of a limo, prowled the ocean 300 million years ago.
- Physics
Pentaquarks, locked-in syndrome and more reader feedback
Readers discuss pentaquark sightings, delightful diatoms and whether an ancient four-legged fossil was actually a snake.
- Paleontology
Dimetrodon’s diet redetermined
The reptilelike Dimetrodon dined mainly on amphibians and sharks, not big herbivores as scientists once believed.
- Paleontology
New evidence weakens case against climate in woolly mammoths’ death
Hunters responsible for woolly mammoths’ extinction, suggests a chemical analysis of juveniles’ tusks.
- Animals
Oldest pregnant horselike fossil found
A 48-million-year-old fossil of an early horse and fetus is the oldest and best-preserved specimen of its kind.
- Animals
How a seahorse dad is like a pregnant woman
Live birth has evolved at least 150 times in vertebrates, including in seahorses and humans. And there are some surprising similarities between the species.
- Genetics
How an octopus’s cleverness may have evolved
Scientists have sequenced the octopus genome, revealing molecular similarities to mammals.
- Paleontology
Museum fossil links snakes to lizards
Scientists have discovered the fossilized remains of the first four-legged snake. The fossil bridges the gap between snakes and lizards.
- Life
A downy killer wages chemical warfare
The common fungus Beauveria bassiana makes white downy corpses of its victims.
- Animals
‘Virgin births’ won’t save endangered sawfish
Sawfish are the first wild vertebrates found to reproduce via parthenogenesis.
- Paleontology
This dinosaur’s ride may have been a glide
A new dino called Yi qi may have taken to the skies with wings akin to those of pterosaurs and flying squirrels.
