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Pareiasaur: Bumpy Beast Was a Desert Dweller
June 24, 2013 — During the Permian era, animal and plant life were dispersed broadly across Pangea, and a new study supports the idea that there was an isolated desert in the middle of Pangea with its own fauna. ... > 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 -
Snail Trail Reveals Ancient Human Migration
June 20, 2013 — Geneticists have used snails to uncover evidence of an ancient human migration from the Pyrenean region of France to ... > full storyMore: -
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 -
Scientists Use DNA from a Museum Specimen to Study Rarely Observed Type of Killer Whale
June 19, 2013 — Researchers report using DNA from tissues samples collected in 1955 to study what may be a new type of killer whale (Orcinus ... > 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: -
'Cold Snap' 116 Million Years Ago Triggered Marine Ecosystem Crisis
June 16, 2013 — A "cold snap" 116 million years ago triggered a similar marine ecosystem crisis to the ones witnessed in the past as a result of global warming, according to new research. The international study ... > full story -
Study of Oceans' Past Raises Worries About Their Future
June 14, 2013 — Scientists have now completed the first global study of changes that occurred in a crucial component of ocean chemistry, the nitrogen cycle, at the end of the last ice age. The results of their study ... > full story
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