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Latest Polychrotidae Stories

Researchers Find Motion And Muscles Don't Always Work In Lockstep
2014-03-14 15:44:04

University of California - Riverside Unique research by UC Riverside biologists on wild anole lizards reveals new insights on how animals might adapt to their habitat and handle various forms of motion Animals "do the locomotion" every day, whether it's walking down the hall to get some coffee or darting up a tree to avoid a predator. And until now, scientists believed the inner workings of movement were pretty much the same — the nerves send a message to the muscles and there is...

Evolution Is Predictable Shown by Lizards
2013-07-19 10:21:14

University of California - Davis If you could hit the reset button on evolution and start over, would essentially the same species appear? Yes, according to a study of Caribbean lizards by researchers at the University of California, Davis, Harvard University and the University of Massachusetts. The work is published July 19 in the journal Science. The predictability of evolution over timescales of millions of years has long been debated by biologists, said Luke Mahler, a postdoctoral...

They May Not Have 9 Lives, But Lizards Always Land On Their Feet
2012-06-30 06:09:49

Lee Rannals for redOrbit.com - Your Universe Online Cats are not the only species in the animal kingdom that have a knack for always finding a way to land on their feet, lizards have it as well. According to the research presented at the Society for Experimental Biology meeting Friday, lizards swing their tails one way to rotate their body the other. The researchers' findings not only explain how large-tailed animals are able to turn themselves right side up while falling, but also...

Researchers Produce First Genome Sequence Of Lizard
2011-08-31 12:43:03

  Researchers have produced the first genome sequence of a lizard. The green anole lizard is the first non-bird species of reptile to have its genome sequenced and assembled. Researchers have assembled and analyzed over 20 mammalian genomes, but the genetic landscape of reptiles remains relatively unexplored. "Sometimes you need to be at a certain distance in order to learn about how the human genome evolved," Jessica Alföldi, co-first author of the paper and a...

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2011-07-14 07:39:23

Anoles show they can solve novel problem, remember solutions Tropical lizards may be slow. But they aren't dumb. They can do problem-solving tasks just as well as birds and mammals, a new study shows. A Duke University experiment tested Puerto Rican anoles on several cognitive tasks and found they can learn and remember to solve a problem they've never faced before. The results challenge the scientific stereotype that reptiles have limited cognitive abilities and methods for finding food. The...

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2010-06-19 08:03:13

Millions of years before humans began battling it out over beachfront property, a similar phenomenon was unfolding in a diverse group of island lizards. Often mistaken for chameleons or geckos, Anolis lizards fight fiercely for resources, responding to rivals by doing push-ups and puffing out their throat pouches. But anoles also compete in ways that shape their bodies over evolutionary time, says a new study in the journal Evolution. Anolis lizards colonized the Caribbean from South America...

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2010-04-05 07:49:32

Mothers win the genetic tug of war by producing more sons with larger fathers and more daughters with smaller fathers "Be faithful in small things because it is in them that your strength lies." Mother Teresa's words echo throughout the world. They ring particularly true in the biological kingdom among brown anole lizards, as evidenced in research detailed in the April 2 edition of the journal Science. Dartmouth researchers Ryan Calsbeek and Bob Cox study male and female brown anole lizards...

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2009-02-13 13:48:48

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 body part to distract the predator as they scamper to safety. According to Gary Gillis from Mount Holyoke College, USA, up to 50% of some lizard populations seem to have traded some part of their tails in exchange for escape. This made Gillis wonder how this loss may...

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2008-08-29 11:35:00

Birds and others sing; anoles are first species known to mark time through visual displays What does Jack LaLanne have in common with a Jamaican lizard? Like the ageless fitness guru, the lizards greet each new day with vigorous push-ups. That's according to a new study showing that male Anolis lizards engage in impressive displays of reptilian strength -- push-ups, head bobs, and threatening extension of a colorful neck flap called a dewlap -- to defend their territory at dawn and dusk. The...

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2007-02-23 22:45:00

Male Anole lizards signal ownership of their territory by sitting up on a tree trunk, bobbing their heads up and down and extending a colorful throat pouch. They can spot a rival lizard up to 25 meters away, says National Science Foundation (NSF)-funded biologist Terry Ord of the University of California at Davis. Ord and colleagues published their results this week in the journal Proceedings of the Royal Society B. The lizards' signals need to be strong enough for a rival to see, but not...


Latest Polychrotidae Reference Libraries

36_f6acb043437112a4f96080d3cd0997e1
2005-06-23 09:24:43

The Brown Anole ( Norops sagrei) is a lizard of the anole family that is native to Cuba and the Bahamas. It has been widely introduced and is now common in southern Florida, other Caribbean islands, and elsewhere in the region. Its introduction in the USA has damaged stocks of the native Carolina Anole. The Brown Anole is a slender lizard reaching about 18cm in length. Males and females differ somewhat in coloration: males have a dark stripe down their backs, females a light stripe. As in...

36_4bd26a59f86fae24a70be86a2bade3e6
2005-06-23 09:09:43

The Carolina Anole (Anolis carolinensis), also known as the Green Anole, is an aboreal lizard found primarily in the southeastern parts of the United States and some Caribbean islands. It was described by Voigt in 1832 and Carolus Linnaeus in 1758 (as Lacerta principalis, fide Duméril and Bibron 1837: 121). Common synomyns include the American Anole and Red-throated Anole. It is sometimes referred to as the American chameleon due to its color-changing abilities, although it is not a...

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Word of the Day
mallemaroking
  • Nautical, the visiting and carousing of sailors in the Greenland ships.
This word is apparently from a confusion of two similar Dutch words: 'mallemerok,' a foolish woman, and 'mallemok,' a name for some persons among the crew of a whaling vessel.