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POPSDinosaur evolutionary tree unveiledby
Mohir Yesterday 7:47 AM It remained at that low level throughout the following Cretaceous period, a time of plenty in Earth's terrestrial history in which flowering plants, lizards, snakes, birds and mammals all became much more numerous. Dinosaurs apparently did not take advantage of the abundant food supply that emerged during the Cretaceous Terrestrial Revolution. "Our supertree allows us to look for unusual patterns across the whole of dinosaurs for the first time," says Lloyd. "It is the most comprehensive picture ever produced of how dinosaurs evolved."
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POPSDinosaurs Diversified Over Time, not Suddenly During this epoch of riotous biodiversity, flowering plants, social insects, butterflies, modern groups of lizards, mammals, and possibly birds, too, all emerged. Some experts have suggested that dinosaurs were also part of the show, as so many weird fossils, such as duckbilled hadrosaurs, horned ceratopsians, pachycephalosaurs and other wonders, date from this time. But a new study, published on Wednesday in a British journal Proceedings of the Royal Society B, says that dinosaurs were less than a sideshow in the DNA spectacular. Researchers led by Graeme Lloyd of the University of Bristol, western England, devised a "supertree" of dinosaur evolution, patiently analyzing how more than 450 species -- about 70 percent of the known finds -- developed.
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POPSDino diversity earlier than first thought Maybe there is the idea that species including the dinosaurs were trying to deal with conditions brought about by the meteor, so many adaptations arose, but nature loves nothing more than competition, even when times are good.
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POPS3 Next-Gen Animal Prosthetics Build Perfect Beasts Humans aren't the only ones who benefit from artificial (and often robotic) advances in high-tech medicine. Kangaroos, dolphins, birds and even elephants have all received artificial parts. Scientists involved in these efforts believe outfitting disabled animals with prosthetics can maintain biodiversity and help save endangered species. Here are the tales of three lucky patients from the other kingdom.
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POPSWind Farm not Eco-Neutral Just a reminder that the best energy source is to use less of it. We don't have a totally green energy source (if we could only photosynthesize!)
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POPSFish that can talk two fish, the toadfish and midshipman fish, have been found to actually be able to vocalize
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POPSMosaics, mosaics, mosaics... I've got a bit of a thing about mosaics and have done a few clips on the subject before. This site is just packed with amazing stuff and is a must see. I've clipped a few of the more unusual items (catflaps, would you believe?) But the site is well worth a visit.
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POPSSpeed of the Fastest Bird "Peregines are large, grace birds that can reach speeds up to 250 km/hr, making them the fastest creatures on earth." Go 2 source 4 more info.
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POPSCoral Reefs-The Oceans Canary is Dying Living in Florida gives me a first hand look every time I dive. Great sadness for all Marine life but the Reefs are like the Oceans Canary. An excellent measure of man made destruction.
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POPSBisexual Species Summary: homosexuality is a natural behavior in the animal kingdom and also occurs in captive situations, suggesting bisexuality is natural for birds, mammals, and other animals...and for humans as well
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POPSlyme disease what and where can you get this? and why are doctors so reluctant to diagnose this?
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