Tag: "lizard" at biology news

Scientists Discover Smallest Frog

...inforests over the past several years, including a lizard tied for the world's tiniest. Says Hedges, "You don't often find species that are the smallest, especially in a big group like tetrapods." Cuban scientists restricted by that country's economic conditions typically have teamed with foreign c...

Caribbean Lizards Evolve Independently

... University, has discovered that remarkablysimilar lizard communities have evolved independently on differen...ave evolvedrepeatedly on each island. The lizard family tree strongly suggests the second mechanism. In Science, Losos and his colleagues rep...

Study 'Gone With The Wind' Provides Stellar Ecological Example

...of California, Davis, had just finished censusing lizard andspider populations on 19 tiny islands in the Ba...erorganisms. On the moderately disturbed islands, lizard populations were lessaffected by the hurricane than were spider populations, but the spidersrebounde...

First Complete Fossil Of Fierce Prehistoric Predator Found In South Africa

...esembled a cross between a lion and a largemonitor lizard - leading to the name science has given them. "Gorgons" aremythical monsters with such a horrible appearance that gazing upon them turns anobserver to stone. Gorgons are members of the Therapsida, one of the major groups of vertebrates.They shared a ...

Lizards do really learn to recognize people

...ler. They also wantedto see if the twelve-year-old lizard remembered a lab student who had cared forhim four years earlier. McRobert, the student and around forty strangers took turns reading theDr Seuss children's book Oh, the Places You'll Go! to Fido. They read it aloudor silently, in front of Fi...

Lizard research bolsters theory that forest edges are hotbeds of speciation

...al selection. The researchers placed 480 plastic lizard decoys, painted to match the striped, reddish skink, throughout the dense rainforest and the open dry forest. By looking for the telltale bite marks created by bird bills, the researchers identified how many models were attacked. According to Sc...

New fossil snake with legs, reported in Science

...s was a more likely story. "We know of at least 62 lizard and snake lineages that have undergone some degree of limb reduction," Rieppel notes. "Since our fossil record of snakes is very poor, we can't exclude the possibility that limbs in snakes were lost not just once in the beginning, but several times t...

Newly found bipedal reptile fossil predates dinosaurs by more than 60 million years

...from a sprawled posture like that of a four-legged lizard to an upright posture when they tuck their limbs u...ld specimen, which looks something like an upright lizard with forearms and a tail that more than doubles its body length, lived during the Permian period bet...

Game of life allows all mating strategies

...-screening techniques of molecular biologists to a lizard lair where almost anything goes: o For months during the lizard mating season, the biologists watched orange "bullies," the aggressive and highly territorial males ...

Study illustrates diversification, speciation in biological "islands"

...eater Antilles, Losos showed that the diversity of lizard species is primarily a result of the evolutionary ...y questions, Losos and Schluter used the Caribbean lizard phylogeny, or genetic evolutionary family tree, of Caribbean lizards to estimate the number of immig...

Passport, please: A global strategy to curb invasive species

...species remains, three forest birds and six native lizard species. Biodiversity loss, though devastating, is not the only issue. More than one million nocturnal brown snakes now inhabit even the smallest spaces on Guam. They cause black-outs by crawling on power lines, hunt in family chicken coops and sli...

Study shows top predator makes prey population vulnerable in catastrophe

...sity in St. Louis have completed a unique study of lizard populations on tiny islands in the Bahamas that sh...ouis were studying the effects of a large predator lizard species, the curly-tailed lizard, on both its prey, a smaller species called the brown anole, and on...

Dinosaurs had a "rostral nostril," says Science researcher

...ortance of nostril position for smell. The monitor lizard fleshy nostril is placed towards the middle or back of its bony nostril, diverted by an enlarged chemosensory organ. While this placement could hinder the collection of smells from the environment, sensory data collected by the chemosensory organ may...

World's smallest lizard discovered in the Caribbean

The world's smallest lizard has been discovered on a tinyCaribbean island off ...il. Itshares the title of "smallest" with another lizard species namedSphaerodactylus parthenopion, discovered in 1965 in the BritishVirgin Islands. Hedges ...

World's smallest lizard discovered in Caribbean

The world's smallest lizard has been discovered on a tiny Caribbean island off...l. It shares the title of "smallest" with another lizard species named Sphaerodactylus parthenopion, discovered in 1965 in the British Virgin Islands. Hedge...

Worlds smallest reptile discovered in Caribbean

...blics Jaragua National Park. The discovery of the lizard is just one of several miniature species found in ...t to the base of the tail, is similar in size to a lizard endemic to the British Virgin Islands, and also ties for the worlds smallest amniote, a group consis...

Reserve creates model for science-based indigenous stewardship of land

... species of amphibians and reptiles, including one lizard new to science. "The number of threatened and near-threatened bird species recorded from even this brief survey of the Serranas Cofn make this region one of the most important sites for bird conservation anywhere in the eastern Andes of Colombia, E...

Proliferation of Argentine ants in California linked to decline in coastal horned lizards

...ggests a diversity of ants is necessary to support lizard populations," write Suarez and Case in their paper...son learned from the decline of the coastal horned lizard is that land managers attempting to preserve open space around new suburban or urban developments ma...

Lizards and salamanders may use lungs to hear, study says

... and three green anoles (an anole is a tropical lizard that can change color) with oxygenated saline solution - the oxygen in the solution allowed the animals to keep breathing. Sure enough, the response to sound - the vibrations - dropped. ...

U of C researcher tracks path of flying snake

...te in the same fashion as a flying squirrel, frog, lizard or fish. University of Chicago biologist Jake Socha has been studying the gliding patterns and biomechanics of these airborne creatures. In the Aug. 8 issue of Nature, the sixth-year graduate student describes some of the aerodynamics of the Chrysope...

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