Currently Browsing: Evolution
Posted by kittymowmow in Animals, Evolution, Wildlife on 03 18th, 2009 | No Comments

American Carnivores Evolved To Avoid Each Other, New Study Suggests

American Carnivores Evolved To Avoid Each Other, New Study Suggests
photo credit: peupleloup How do the many carnivorous animals of the Americas avoid competing for the same lunch, or becoming each other's meal? A possible answer comes from a new study by a pair of researchers at the University of California, Davis. Their large-scale analysis shows that it's not just...
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Posted by kittymowmow in Animals, Evolution, Farm & Ranch, Food, Horses, Mammals, Science & Tech on 03 10th, 2009 | No Comments

Archaeologists Find Earliest Known Domestic Horses: Harnessed and Milked

Archaeologists Find Earliest Known Domestic Horses: Harnessed and Milked
An international team of archaeologists has uncovered the earliest known evidence of horses being domesticated by humans. The discovery suggests that horses were both ridden and milked. The findings could point to the very beginnings of horse domestication and the origins of the horse breeds we know...
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Posted by kittymowmow in Animals, Evolution, Extinct Species, Science & Tech, Underwater, Wildlife on 02 27th, 2009 | 2 Comments

Scientists Find First Animal That Had Sex

Scientists Find First Animal That Had Sex
Remains of embryos entombed in their fish mothers' wombs for 380 million years have been found in fossils from an ancient rock outcrop in Western Australia. The finding is a big deal because it suggests that sex goes way back. The prehistoric fish, called placoderms, are found at the base of the vertebrate...
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Posted by kittymowmow in Animals, Conservation, Evolution, Science & Tech, Underwater, Wildlife on 02 25th, 2009 | No Comments

Shape-shifting Coral Evade Identification

Shape-shifting Coral Evade Identification
The evolutionary tendency of corals to alter their skeletal structure makes it difficult to assign them to different species. Researchers writing in the open access journal BMC Evolutionary Biology have used genetic markers to examine coral groupings and investigate how these markers relate to alterations...
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Posted by kittymowmow in Dogs, Endangered Species, Evolution, Mammals, Science & Tech, Wildlife on 02 9th, 2009 | No Comments

Wolf In Dog’s Clothing? Black Wolves May Be First ‘Genetically Modified’ Predators

Slipping through trees or across snow, the wolf has glided into legend on paws of white, gray or — in North America — even black. This last group owes an unexpected debt to the cousins of the domestic dog, say Stanford researchers. In an unconventional evolutionary twist, dogs that bred with wolves...
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Posted by kittymowmow in Evolution, Science & Tech, Underwater, Wildlife on 01 27th, 2009 | No Comments

Newly discovered catfish species climbs rocks

A previously unknown species of climbing catfish has been discovered in remote Venezuela, and its strange traits are shaking the evolutionary tree for these fish. The newfound catfish, Lithogenes wahari, shares traits with two different families of fish — Loricariidae (armored catfishes) and Astroblepidae...
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Posted by kittymowmow in Creepy Crawlies, Evolution, Reptiles & Amphibians, Science & Tech, Wildlife on 01 27th, 2009 | No Comments

Evolution In Action: Native U.S. Lizards Are Adapting To Escape Attacks By Fire Ants

Penn State Assistant Professor of Biology Tracy Langkilde has shown that native fence lizards in the southeastern United States are adapting to potentially fatal invasive fire-ant attacks by developing behaviors that enable them to escape from the ants, as well as by developing longer hind legs, which...
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Posted by kittymowmow in Conservation, Evolution, Reptiles & Amphibians, Science & Tech, Wildlife on 01 20th, 2009 | No Comments

Galapagos’ rosy lizard is new species

Image by Colin Purrington via Flickr Hard to believe a giant, pink lizard could be overlooked for almost two centuries. Charles Darwin missed it during his 1835 study of the Galapagos Islands that led to his theory of evolution. Park rangers ignored the pink and black-striped reptiles after accidentally...
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Posted by kittymowmow in Conservation, Creepy Crawlies, Evolution on 12 3rd, 2008 | No Comments

Imitation Is Not Just Flattery For Amazon Butterfly Species

Many studies of evolution focus on the benefits to the individual of competing successfully – those who survive produce the most offspring, in Darwin's classic 'survival of the fittest'. But how does this translate to the evolution of species? A new article considers an aspect of the natural world...
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Posted by kittymowmow in Endangered Species, Evolution, Science & Tech on 11 10th, 2008 | No Comments

DNA Chunks, Chimps And Humans: Marks Of Differences Between Human And Chimp Genomes

Reading this story makes me wonder if and how the results of studies on genetic differences between humans and other primates will affect animal rights legislation.  What do you think? Researchers have carried out the largest study of differences between human and chimpanzee genomes, identifying regions...
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