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Reptiles for Sale w/ Photos
2008-05-04
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- Female Concave-eared Frogs Draw Mates With Ultrasonic Calls
Most female frogs don't call; most lack or have only rudimentary vocal cords. A typical female selects a mate from a chorus of males and then -- silently -- signals her beau. But the female concave-eared torrent frog, Odorrana tormota, has a more direct method of declaring her interest: She emits a high-pitched chirp that to the human ear sounds like that of a bird.
- Biological Weapons To Control Cane Toad Invasion In Australia
New research on cane toads in Northern Australia has discovered a way to control the cane toad invasion using parasites and toad communication signals. Biologists says that controlling toads has been difficult as things that kill them will often kill frogs. Professor Shine and his team studied cane toads in Queensland that lagged behind the invasion front and found they were infected with a lungworm parasite which slows down adults and, in laboratory tests, kills around 30% of baby toads.
- Priority Regions For Threatened Frog And Toad Conservation In Latin America
Nearly 35% of all amphibians are now threatened of extinction raising them to the position of the most endangered group of animals in the world. Decline of amphibian populations and species is ongoing due to habitat loss, fungal disease, climate shift and agrochemical contaminants. These impacts are even worse to frogs that reproduce in water bodies such as streams and ponds. Scientists now propose a priority set of areas for the conservation of frogs and toads in Latin America. The study is unprecedented in terms of not only the proposition of key-conservation areas, but also because it shows that the inclusion of species biological traits, such as reproductive modes, affects the performance of area-prioritization analyses.
- Legless Lizard And Tiny Woodpecker Among New Species Discovered In Brazil
Researchers discovered a legless lizard and a tiny woodpecker along with 12 other suspected new species in Brazil's Cerrado, one of the world's 34 biodiversity conservation hotspots. The Cerrado's wooded grassland once covered an area half the size of Europe, but is now being converted to cropland and ranchland at twice the rate of the neighboring Amazon rainforest, resulting in the loss of native vegetation and unique species.
- Dinosaurs Probably Lacked Tissue To Generate Heat
Scientists have discovered why birds, unlike mammals, lack a tissue that is specialized to generate heat. There is a surprising implication that the same lack of heat-generating tissue may have contributed to the extinction of dinosaurs.
- Lizard Hunting Styles Impact Ability To Walk, Run
The technique lizards use to grab their grub influences how they move, according to new research. Lizards use two basic foraging techniques. In the first approach, aptly dubbed sit-and-wait, lizards spend most of their time perched in one location waiting for their prey to pass. Then, with a quick burst of speed, they run after their prey, snatching it up with their tongues. In the other form of foraging, known as wide or active foraging, lizards move constantly but very slowly in their environment, using their chemosensory system to stalk their prey.
- Variety Is The Spice Of Life: Too Many Males, Too Little Time...
Female Australian painted dragon lizards are polyandrous, that is, they mate with as many males as they can safely get access to. Research has shown that this preference could therefore contribute to the maintenance of both male types within the population. Female painted dragons possess the remarkable ability to store sperm inside their reproductive tract that remain viable for a considerable amount of time, so that the sperm of different males actually compete with each other to fertilize her eggs.
- Road Kill Losses Add Up, Taxing Amphibians And Other Animals
When frogs hit the road, many croak. Researchers found more than 65 animal species killed along a short stretch of roads and nearly 95 percent of the total dead were frogs and other amphibians, suggesting that road-related death, or road-kill, possibly contributes to their worldwide decline.
- Almost Extinct Turtle Discovered Living In Wild In Northern Vietnam
A critically endangered turtle that previously was thought to be extinct in the wild has been discovered in northern Vietnam. Experts confirmed that they have identified the only known living specimen of a Swinhoe's soft-shell turtle (Rafetus swinhoei) in nature.
- Lizards Undergo Rapid Evolution After Introduction To A New Home
In 1971, biologists moved five adult pairs of Italian wall lizards from their home island of Pod Kopiste, in the South Adriatic Sea, to the neighboring island of Pod Mrcaru. Now researchers have shown that introducing these small, green-backed lizards, Podarcis sicula, to a new environment caused them to undergo rapid and large-scale evolutionary changes.
- First Lungless Frog Discovered
Researchers have confirmed the first case of complete lunglessness in a frog. The little aquatic frog apparently gets all the oxygen it needs through its skin. Previously known from only two specimens, two new populations of the aquatic frog were found by biologists during a recent expedition to Indonesian Borneo.
- Zoologists Unlock New Secrets About Frog Deaths
New research opens a bigger window to understanding a deadly fungus that is killing off frogs throughout Central and South America, and that could threaten amphibian populations in North America as well. The research underscores the dire circumstances facing up to 43 percent of known amphibian species in the world and points up the need for more regulations, conservation efforts and quarantines to prevent the fungus' spread.
- Threatened Atlantic Leatherback Turtles Split Into Two Groups To Forage, Isotope Analysis Suggests
The beaches of French Guiana constitute a major reproduction site for leatherback turtles. This sea turtle, although a protected species, is threatened by human activity. Female turtles return to the same beach every two to three years to lay their eggs; what happens in the interval remains a mystery. In a new study a group of French and Belgian scientists found that the turtles segregate into two distinct feeding units.
- Unlocking The Psychology Of Snake And Spider Phobias
Researchers have unlocked new evidence that could help them get to the bottom of our most common phobias and their causes. Hundreds of thousands of people count snakes and spiders among their fears, and while scientists have previously assumed we possess an evolutionary predisposition to fear the unpopular animals, new research seem to indicate otherwise.
- Turtle Nesting Threatened By Logging Practices In Gabon, Smithsonian Warns
Endangered sea turtles are victims of sloppy logging practices in the west central African country Gabon, according to a new study. Sea turtle nesting attempts are impeded by lost or abandoned logs that accumulate along the country's coastal beaches. Logs are floated downriver from forests to coastal lumberyards in the Gabonese Republic, but some float out to sea and then wash ashore, where they form large tangles.
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