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How Microbes Survive at Bare Minimum: Archaea Eat Protein
March 27, 2013 — Beneath the ocean floor is a desolate place with no oxygen and sunlight. Yet microbes have thrived in this environment for millions of years. Scientists have puzzled over how these microbes survive, ... > full story -
Asteroids, Comets and Meteors
Near-Earth Object Impacts
Earth Science
Atmosphere
Geology
Environmental Issues
New Evidence Ancient Asteroid Caused Global Firestorm on Earth
March 27, 2013 — A new look at conditions after a Manhattan-sized asteroid slammed into a region of Mexico in the dinosaur days indicates the event could have triggered a global firestorm that would have burned every ... > full story -
Tarsiers' Bulging Eyes Shed Light on Evolution of Human Vision
March 27, 2013 — After eons of wandering in the dark, primates developed highly acute, three-color vision that permitted them to shift to daytime living, a new study suggests. The findings challenge the prevailing ... > full story -
Early Prehistoric Marine Reptiles: Evidence of a Placodont That Originated in Europe
March 27, 2013 — Placodonts were among the first marine reptiles. With their trademark crushing teeth, they fed on shellfish and crustaceans. However, when and where these highly specialized marine reptiles ... > full story -
Dusting for Prints from a Fossil Fish to Understand Evolutionary Change
March 27, 2013 — In 370-million-year-old red sandstone deposits in a highway roadcut, scientists have discovered a new species of armored fish in north central Pennsylvania. Studying and describing this fish's ... > full story -
Controversial Worm Keeps Its Position as Progenitor of Humankind
March 27, 2013 — Researchers are arguing about whether or not the Xenoturbella bocki worm is the progenitor of humankind. But new studies indicate that this is actually the ... > full story -
Decoding the Genetic History of the Texas Longhorn
March 25, 2013 — Researchers analyzed almost 50,000 genetic markers from 58 cattle breeds. They found that the Longhorn genome traces back through Christopher Columbus' second voyage to the New World, the Moorish ... > full story -
What a Bunch of Dodos! Catastrophic Mass Extinction of Birds in Pacific Islands Followed Arrival of First People
March 25, 2013 — The demise of the dodo is one of the better known bird extinctions in the world, but its sad fate was anticipated a thousand times over by its Pacific ... > full storyMore: -
First Migration from Africa Less Than 95,000 Years Ago: Ancient Hunter-Gatherer DNA Challenges Theory of Early out-of-Africa Migrations
March 22, 2013 — Recent measurements of the rate at which children show DNA changes not seen in their parents -- the "mutation rate" -- have challenged views about major dates in human evolution. In particular these ... > full story -
Fossil Bird Study on Extinction Patterns Could Help Today's Conservation Efforts
March 21, 2013 — A new study of nearly 5,000 Haiti bird fossils shows contrary to a commonly held theory, human arrival 6,000 years ago didn't cause the island's birds to die simultaneously. Although many birds ... > full story
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