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Tag: "reptile" at biology news

Python a 'hearty' eater

... undergoes drastic physiological changes after the reptile consumes a large meal. Hicks observed that the sna...t, which has two ventricles or pumping chambers, a reptile heart has only one. "In mammals, including humans, a 10-30 percent increase in ventricular mass can...

Venom doc tracks down snake bioweapons

...ived from proteins presumably expressed in ancient reptile saliva. Both of these toxin types, CRISP and kallikrein, are closely related to toxins called helothermine and gilatoxin, which are produced by the Beaded Lizard and the Gila Monster, respectively. One of the toxins in this study (called the wagleri...

A whole lot of shaking goin' on triggers early hatching in red-eyed tree frogs

...the embryos to hatch early when shaken by a hungry reptile but not when buffeted by another outside force such as rain, is a question that has now been answered in part by Boston University researcher Karen Warkentin. According to her findings, reported in an upcoming issue of Animal Behaviour, it's a partic...

Elusive salamanders have role in developing new sampling models

...project and is responsible for monitoring the rare reptile and amphibian populations on base. Kara Ravenscroft, the project's technician, actually found the first salamander, which she trapped. In subsequent sampling she has extended the date of recorded residence by larval flatwoods salamanders in Fort Ste...

Large dinosaurs were extremely hot in their day, UF study finds

...ezing conditions. The advantages of being a 'warm' reptile are that no energy has to be expended to produce metabolic heat to keep warm; in other words, if we were warm reptile-like ectotherms, we would save a lot of money on the grocery bill." In the meantime, the research team continues to investigate wh...

LSU professor discovers new species

...ch as the more than 80,000 specimens in the LSUMNS reptile and amphibian collection, are important because taxonomy ?the science of describing, naming and classifying organisms ?has implications for basic and applied fields of science. "We can't conserve what we don't know we have. It is imperative that we ...

Old dinosaur research leads to new honor

...oldest known dinosaur embryos and the oldest known reptile that stands on two legs. Now, he is being honoured for more than 35 years of research excellence by joining the ranks of the American Association for the Advancement of Science (AAAS). The society will induct him as a fellow during its annual conf...

CT scan reveals ancient long-necked gliding reptile

...lose up CT scan, composite image of fossil gliding reptile Mecistrotrachelos apeoros. Curved foot and ribs ar...unknown, 220 million-year-old long-necked, gliding reptile may remain forever embedded in stone, but thanks to an industrial-size CT scanner at Penn State's Ce...

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