For horned lizard, horns alone do not make the species
How do you recognize a new species? A thorough study of the million-year evolution of California's horned lizards, sometimes referred to as "horny toads," shows that when it comes to distinguishing such recently ...
Jul 21, 2009 |
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Neon blue-tailed tree lizard glides like a feather
Most lacertid lizards are content scurrying in and out of nooks and crannies in walls and between rocks. However, some have opted for an arboreal life style. Neon blue tailed tree lizards (Holaspis guentheri) leap from b ...
Jul 17, 2009 |
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Ancient fossils shed light on anatomical changes accompanying evolution of first land vertebrates
Cartoon depictions of the first animals to emerge from the ocean and walk on land often show a simple fish with feet, venturing from water to land. But according to Jennifer Clack, a paleontologist at the ...
Other Sciences / Archaeology & Fossils
Jul 06, 2009 |
4.9 / 5 (8) |
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Birds with a nose for a difference
Avoidance of inbreeding is evident amongst humans, and has been demonstrated in some shorebirds, mice and sand lizards. Researchers writing in the open access journal BMC Evolutionary Biology now report that it also occurs ...
Jun 30, 2009 |
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Boy or girl? In lizards, egg size matters
Whether baby lizards will turn out to be male or female is a more complicated question than scientists would have ever guessed, according to a new report published online on June 4th in Current Biology. The study shows that f ...
Jun 04, 2009 |
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Did dinosaurs hold their heads up?
Some dinosaurs may have held their heads up, like a giraffe, rather than in a more horizontal position, University of Portsmouth scientists report today.
Other Sciences / Archaeology & Fossils
May 27, 2009 |
4 / 5 (3) |
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A new parasite has been discovered in black green lizards from the Iberian Peninsula
An international team of scientists has discovered a new acarine species (Ophionyssus schreibericolus) that lives off black green lizards from the Iberian Peninsula. This involves the first recording of the O ...
Apr 03, 2009 |
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A venomous tale: Vipers shape lizards' tail-shedding abilities
(PhysOrg.com) -- University of Michigan ecologists and their colleagues have answered a question that has puzzled biologists for more than a century: What is the main factor that determines a lizard's ability ...
Mar 25, 2009 |
4.5 / 5 (4) |
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Genetic study finds treasure trove of new lizards
(PhysOrg.com) -- University of Adelaide research has discovered that there are many more species of Australian lizards than previously thought, raising new questions about conservation and management of Australia's ...
Mar 04, 2009 |
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Tropical lizards can't take the heat of climate warming
From geckos and iguanas to Gila monsters and Komodo dragons, lizards are among the most common reptiles on Earth. They are found on every continent except Antarctica. One even pitches car insurance in TV ads. ...
Mar 03, 2009 |
4.1 / 5 (45) |
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Ladyboy lizards use transvestite trickery: researchers
Young male lizards in South Africa imitate females to fool aggressive older males into leaving them alone, in an example of transvestism in the natural world, researchers have found.
Mar 03, 2009 |
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Tree lizard’s quick release escape system makes jumpers turn somersaults
If you've ever tried capturing a lizard, you'll know how difficult it is. But if you do manage to corner one, many have the ultimate emergency quick release system for escape. They simply drop their tails, leaving the twitching ...
Biology /
Feb 13, 2009 |
5 / 5 (1) |
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Native Lizards Evolve to Escape Attacks by Fire Ants
(PhysOrg.com) -- Penn State Assistant Professor of Biology Tracy Langkilde has shown that native fence lizards in the southeastern United States are adapting to potentially fatal invasive fire-ant attacks ...
Biology /
Jan 20, 2009 |
3.8 / 5 (6) |
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Four, three, two, one... pterosaurs have lift off
Pterosaurs have long suffered an identity crisis. Pop culture heedlessly — and wrongly — lumps these extinct flying lizards in with dinosaurs. Even paleontologists assumed that because the creatures flew, they were birdlike ...
Other Sciences / Archaeology & Fossils
Jan 06, 2009 |
4.8 / 5 (10) |
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