Search Results for: Vertebrates
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1,539 results
1,539 results for: Vertebrates
- Paleontology
Sea Dragons
About 235 million years ago, as the earliest dinosaurs stomped about on land, some of their reptilian relatives slipped back into the surf, took on an aquatic lifestyle, and became ichthyosaurs—Greek for fish lizards.
- Health & Medicine
Making Bone: Novel form of vitamin D builds up rat skeleton
A newly synthesized form of Vitamin D induces bone-making cells to capture calcium and fortify bone mass in rats, suggesting it might work against osteoporosis in people.
- Paleontology
Dear Mummy: Rare fossil reveals common dinosaur’s soft tissue
A mummified dinosaur unearthed in Montana a year ago is giving scientists a rare peek at what the creature's muscles and other soft tissues may have looked like.
- Health & Medicine
Young Women Don’t Bone Up on Soy
Among the many reported nutritional benefits of diets rich in soy is a strengthening of bone in postmenopausal women. For these Golden Girls, who face an increasing risk of osteoporosis, soy-based foods can provide much-needed assistance in limiting the inevitable loss of bone. Although soybeans are best known for their oil, their protein is also […]
- Paleontology
Learning from the Present
New field studies of unfossilized bones, as well as databases full of information about current fossil excavations and previous fossil finds, are providing insights into how complete—or incomplete—Earth's fossil record may be.
- Ecosystems
Famine reveals incredible shrinking iguanas
Marine iguanas in the Galápagos Islands are the first vertebrates known to reduce their size during a food shortage and then regrow to their original body lengths.
- Health & Medicine
Puffer Fish Genomes Swim into View
The tightly packed genomes of two puffer fish species have been deciphered.
- Paleontology
Bone Crushers: Teeth reveal changing times in the Pleistocene
Tooth-fracture incidence among dire wolves in the fossil record can indicate how much bone the carnivores crunched and, therefore, something about the ecology of their time.
- Animals
New frog-killing disease may not be so new
The skin disease that savaged amphibians in remote wildernesses in the 1990s has been linked to outbreaks in the 1970s.
- Paleontology
Large shadows fell on Cretaceous landscape
Paleontologists have unearthed the remains of what they believe could be the largest flying creature yet discovered—a 12-meter-wingspan pterosaur.
- Paleontology
All mixed up over birds and dinosaurs
A bit of fossil fakery snookered a team of paleontologists
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After West Nile Virus
As biologists try to estimate the impact of West Nile virus on wildlife, it's not the famously susceptible crows that are causing alarm but much rarer species.
