http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (PhysOrg.com) -- Name all the venomous animals you can think of and you probably come up with snakes, spiders, bees, wasps and perhaps poisonous frogs. But catfish? http://www.physorg.com/news179688441.html Biology Thu, 10 Dec 2009 17:27:50 EST news179688441 In contrast to the exhaustive research into venom produced by snakes and spiders, venomous fish have been neglected and remain something of a mystery. Now, a study of 158 catfish species, published in the open access journal BMC Evolutionary Biology, has catalogued the presence of venom glands and investigated their biological effects. http://www.physorg.com/news179133781.html Biology Fri, 04 Dec 2009 07:24:07 EST news179133781 Millions of shark fins are sold at market each year to satisfy the demand for shark fin soup, a Chinese delicacy, but it has been impossible to pinpoint which sharks from which regions are most threatened by this trade. Now, groundbreaking new DNA research has, for the first time, traced scalloped hammerhead shark fins from the burgeoning Hong Kong market all the way back to the sharks' geographic origin. In some cases the fins were found to come from endangered populations thousands of miles away. http://www.physorg.com/news178868510.html Biology Tue, 01 Dec 2009 05:42:37 EST news178868510 New species are not just discovered in exotic locales -- even places as urban as California still yield discoveries of new plants and animals. Academy scientists recently named a new species of chimaera, an ancient and bizarre group of fishes distantly related to sharks, from the coast of Southern California and Baja California, Mexico. http://www.physorg.com/news172845340.html Biology Tue, 22 Sep 2009 13:37:42 EST news172845340 When you were a kid your mom poured it on your scraped finger to stave off infection. When you got older you might have even used it to bleach your hair. Now there's another possible function for this over-the-counter colorless liquid: your body might be using hydrogen peroxide as an envoy that marshals troops of healing cells to wounded tissue. http://www.physorg.com/news163253821.html Medicine & Health Wed, 03 Jun 2009 13:17:33 EST news163253821 New evidence gleaned from CT scans of fossils locked inside rocks may flip the order in which two kinds of four-limbed animals with backbones were known to have moved from fish to landlubber. http://www.physorg.com/news159190294.html Other Sciences Fri, 17 Apr 2009 12:32:10 EST news159190294 (PhysOrg.com) -- A study conducted at UQ's Moreton Bay Research Station has found, when it comes to crayfish, size really does matter. http://www.physorg.com/news157221587.html Biology Wed, 25 Mar 2009 17:40:17 EST news157221587 The genetic toolkit that animals use to build fins and limbs is the same genetic toolkit that controls the development of part of the gill skeleton in sharks, according to research to be published in Proceedings of the National Academy of Sciences on March 23, 2009, by Andrew Gillis and Neil Shubin of the University of Chicago, and Randall Dahn of Mount Desert Island Biological Laboratory. http://www.physorg.com/news157048100.html Biology Mon, 23 Mar 2009 17:29:11 EST news157048100 Tetrapods, the first four-legged land animals, are regarded as the first organisms that had fingers and toes. Now researchers at Uppsala University can show that this is wrong. Using medical x-rays, they found rudiments of fingers in the fins in fossil Panderichthys, the `transitional animal,` which indicates that rudimentary fingers developed considerably earlier than was previously thought. http://www.physorg.com/news141278840.html Biology Mon, 22 Sep 2008 05:07:20 EST news141278840