Search Results for: Vertebrates
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1,505 results
- 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.
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Ancient Gene Takes Grooming in Hand
A gene involved in body development also plays a critical role in regulating the grooming behavior of mice, a discovery that may advance the understanding of certain psychiatric disorders.
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For geneticists, interference becomes an asset
A new method of disrupting genes, called RNA interference, works in mouse cells.
- Paleontology
CT scan unscrambles rare, ancient egg
A tangled heap of bones and bone fragments in the bottom of an unhatched elephant bird egg may soon be reassembled into a model of the long-dead embryo, thanks to high technology—and scientists won't even have to crack open the egg to do it.
