Articles with the keyword: 
Bacteria may play big role in forming fossils
sea-maid submitted, created time 3 days 13 hours (www.sciencenews.org)
Paleontologists were stunned when fossils appearing to belong to the soft-tissued embryos of marine creatures were unearthed in Chinese sediments a decade ago 
sea-maid submitted, created time 1 month 1 day (www.nature.com)
Geologists have found evidence for the most recent predecessor of the Indian Ocean mega-tsunami thought to have killed more than 220,000 people in 2004
Woolly mammoths native to what's now the U.S., says study
Darkfrog submitted, created time 2 months 3 weeks (sciencenow.sciencemag.org)
Recent DNA tests of preserved DNA have allowed us to sort prehistoric mammoths into three groups: One subspecies lived in Eurasia, one in North America, and another ranged through both. For a long time, it was thought that mammoths originated in Eurasia because the fossils that have been found there are older. While this seems to be true, the studies also show that the subspecies that arose in North America crossed the Bering Strait and supplanted the other two a few hundred thousand years ago.
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New giant clam species offers window into human past
sea-maid submitted, created time 3 months 15 hours (esciencenews.com)
Researchers report the discovery of the first new living species of giant clam in two decades, according to a report to be published online on August 28th in Current Biology, a Cell Press publication. While fossil evidence reveals that the...
Dinosaurs are shown to be related to birds, not reptiles
Darkfrog submitted, created time 7 months 3 days (www.nytimes.com)
Genetic testing reveals a connection between the Tyrannosaurus rex and living birds such as ostriches and chickens and NOT other reptiles, such as alligators, something that has long been suspected from skeletal data.
It doesn't come as a shocker at this point, but it's nice to know.
Fossil faces pinpoint earliest North Americans
jane2007 submitted, created time 7 months 3 weeks (www.nature.com)
Some 14,300-year-old fossilized human feces have been found in Oregon, offering the oldest firm evidence yet of humans in North America, and the oldest human DNA in all the Americas.
Fossilized jaw shows that hominids lived in Europe earlier than we'd thought
Darkfrog submitted, created time 8 months 4 days (www.nature.com)
The article names the single-find specie "Homo antecessor" and hypothesizes descent from Homo erectus, saying that some Homo e left Africa for Asia, then quickly doubled back to Spain.
This changes the system of ideas surrounding genus Homo's entrance into Europe. Previous fossils gave a date of as early as 800,000 years ago, but this mandible dates to 1.2 million.
Six New Prehistoric Bat Species Discovered in Egypt
DanyC submitted, created time 8 months 3 weeks (news.nationalgeographic.com)
The new species were found by experts who analyzed 33 fossils—including teeth and jawbones—that had been unearthed over a period of decades in El Faiyum, an oasis region 50 miles southwest of Cairo
Study Finds "Hobbit" Humans Were Diseased Cretins
DanyC submitted, created time 8 months 3 weeks (news.nationalgeographic.com)
The hypothesis is the latest in a string of diseases proposed to explain the small-bodied fossils. The scientists who originally discovered the remains hailed them as representing a heretofore unknown species, Homo floresiensis, that lived at the same time as modern humans 18,000 years ago.
PS:
Cretinism can cause dwarfing and mental retardation, and is related to nutritional deficiencies, primarily a lack of iodine.
Giant frog found in Madagascar
sumsung submitted, created time 9 months 1 week (www.nature.com)
A giant frog that hopped around Madagascar 65–70 million years ago has been discovered. Fossil fragments show that the frog, called Beelzebufo ampinga, could have measured 20 centimeters across its squat head, and probably more than 40 centimeters from snout to tail. The researchers nicknamed the monstrous beast "the frog from hell"; the official name comes from one of the many names for the devil (Beelzebub) and the Latin for "toad" (bufo).
Ancient bat flew without echolocation
sumsung submitted, created time 9 months 2 weeks (www.nature.com)
Among those who study the evolution of bats, the question of whether the bats developed echolocation and then flight, flight and then echolocation or developed both traits in tandem is a matter of great debate. A discovery in Wyoming not long ago has tossed some more gas on that fire.
The 52.5-million-year-old bat unusually had a claw on all five digits of each limb, earning it the nickname "20-clawed bat." Its anatomy shows that it captured its prey without the use of echolocation. The echo-first campers have yet to respond.
Whales may have evolved from raccoon-sized creature
Eric wu submitted, created time 11 months 1 week (www.reuters.com)
In the search for a missing evolutionary link to modern whales, scientists have come up with an unlikely land cousin -- a raccoon-sized creature with the body of a small deer.
Long-Lost Relative of Whales Found?
Eric wu submitted, created time 11 months 1 week (sciencenow.sciencemag.org)
A group of paleontologists has identified what they believe is the closest relative of whales, dolphins, and porpoises--an extinct, raccoon-sized creature that sloshed along river bottoms and could have eaten like a landlubber. The find promises to give scientists a better idea of where whales and their ilk came from.
Worm-eating fungus trapped in amber
Eric wu submitted, created time 11 months 2 weeks (www.nature.com)
A 100-million-year-old carnivorous fungus has been found encased in amber in southwestern France.
Human Ancestor Preserved in Stone
snoopy submitted, created time 11 months 3 weeks (sciencenow.sciencemag.org)
A hugely important discovery was found by workers at a travertine factory near Denizli, Turkey. They sawed a block of the limestone for tiles and discovered part of a human skull. Researchers says that it appears to be a long-sought species of human that lived 500,000 years ago, however, the fossil also reveals the earliest case of tuberculosis (TB).
TB's presence might provide clues about what this early human looked like and how it adapted to new habitats
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