Search Results for: Vertebrates
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1,560 results
1,560 results for: Vertebrates
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- 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.
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Blood cues sex choice for parasites
Malaria parasites shift their female-biased production of offspring toward a more evenly balanced sex ratio as an infection proceeds.
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For geneticists, interference becomes an asset
A new method of disrupting genes, called RNA interference, works in mouse cells.
- Paleontology
All mixed up over birds and dinosaurs
A bit of fossil fakery snookered a team of paleontologists
- 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.
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Hey, we’re richer than we thought!
The latest inventory of life in the United States has turned up an extra 100,000 species of plants, animals, and fungi.
- Animals
Music without Borders
When birds trill and whales woo-oo, we call it singing. Are we serious?
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Do oxpeckers help or mostly just freeload?
A textbook example of mutualism—birds that ride around picking ticks off big African mammals—may not be mutually beneficial at all.
- Agriculture
Downtown Fisheries?
Advances may make fish farming a healthy prospect, even for inner cities.
- Paleontology
Feathered fossil still stirs debate
More than 2 years after scientists first described 120-million-year-old fossils of a feathered animal, a new analysis seems to bolster the view that the turkey-size species was a bird has-been and not a bird wanna-be.
- Animals
Toothy valves control crocodile hearts
The odd cog teeth of the crocodile heart may be the first cardiac valve known to control blood flow actively.
