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A 700,000-Year-Old Horse Gets Its Genome Sequenced
June 26, 2013 — Scientists have just sequenced the oldest genome from a prehistoric creature. They have done so by sequencing and analyzing short pieces of DNA molecules preserved in bone-remnants from a horse that ... > full story -
Two Mutations Triggered an Evolutionary Leap 500 Million Years Ago
June 24, 2013 — Scientists have discovered two key mutations that sparked a hormonal revolution 500 million years ago. In a feat of "molecular time travel," the researchers resurrected and analyzed the functions of ... > full story -
The Red Queen Was Right: Life Must Continually Evolve to Avoid Extinction
June 20, 2013 — Biologists quote Lewis Carroll when arguing that survival is a constant struggle to adapt and evolve. Is that true, or do groups die out because they experience a run of bad luck? Biologists tested ... > full story -
Why Our Prehistoric, Parasitic 'Jumping' Genes Don't Send Us Into Meltdown
June 20, 2013 — A new study reveals for the first time how the movement and duplication of segments of DNA known as transposons, is regulated. This prevents a genomic meltdown, and instead enables transposons to ... > full story -
Scientists Date Prehistoric Bacterial Invasion Still Present in Today's Plant and Animal Cells
June 19, 2013 — How long ago did bacteria invade the one-celled ancestors of plants and animals to become energy-producing mitochondria and photosynthesizing chloroplasts? Researchers developed a statistical way to ... > full story -
New Research Backs Genetic 'Switches' in Human Evolution
June 19, 2013 — A new study offers further proof that the divergence of humans from chimpanzees some 4 million to 6 million years ago was profoundly influenced by mutations to DNA sequences that play roles in ... > full story -
When It Comes to Mammals, How Big Is Too Big?
June 16, 2013 — Mammals vary enormously in size, from weighing less than a penny to measuring more than three school buses in length. Some groups of mammals have become very large, such as elephants and whales, ... > full storyMore: -
Menopause May Be an Unintended Outcome of Men's Preference for Younger Mates
June 14, 2013 — After decades of laboring under other theories that never seemed to add up, biologists have concluded that menopause is actually an unintended outcome of natural selection generated by men's ... > full story -
Living Fossils? Actually, Sturgeon Fish Are Evolutionary Speedsters
June 6, 2013 — Efforts to restore sturgeon in the Great Lakes region have received a lot of attention in recent years, and many of the news stories note that the prehistoric-looking fish are "living fossils" ... > full story -
Origin of Life
Asteroids, Comets and Meteors
Near-Earth Object Impacts
Earth Science
Geology
Geochemistry
Life-Producing Phosphorus Carried to Earth by Meteorites
June 4, 2013 — Scientists may not know for certain whether life exists in outer space, but research now shows that one key element that produced life on Earth was carried here on meteorites. In a new study, ... > full story
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