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Rich Ore Deposits Linked to Ancient Atmosphere
Much of our planet's mineral
wealth was deposited
billions of years ago when
Earth's chemical cycles were
different from today's.
Using geochemical clues from
... > full story
Paleontologists Find Extinction Rates Higher in Open-Ocean Settings During Mass Extinctions
Researchers have uncovered a
strikingly pattern for
ancient mass extinctions:
extinctions rates during
mass extinctions were
... > full story
Cousins of Prehistoric Supercrocodile Inhabit Lost World of Sahara
Fossils of five ancient
crocs, including one with
teeth like boar tusks and
another with a snout like a
duck's bill, have been
discovered in the Sahara.
... > full story
'Hobbits' Are a New Human Species, According to Statistical Analysis of Fossils
Researchers have confirmed
that Homo floresiensis is a
genuine ancient human
species and not a descendant
of healthy humans dwarfed by
... > full story
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Origin of Life: Generating RNA Molecules in Water
November 20, 2009 — A key question in the origin of biological molecules like RNA and DNA is how they first came together billions of years ago from simple precursors. Now, researchers have reconstructed one of the ... > full story -
Study Pits Man Versus Machine in Piecing Together 425-Million-Year-Old Jigsaw
November 16, 2009 — Reconstructing ancient fossils from hundreds of thousands of jumbled up pieces can prove challenging. A new study tested the reliability of expert identification versus computer analysis in ... > full story -
Ancient Penguin DNA Raises Doubts About Accuracy of Genetic Dating Techniques
November 15, 2009 — Penguins that died 44,000 years ago in Antarctica have provided extraordinary frozen DNA samples that challenge the accuracy of traditional genetic aging measurements, and suggest those approaches ... > full story -
Earth's Early Ocean Cooled More Than A Billion Years Earlier Than Thought
November 12, 2009 — The global ocean covering the Earth 3.4 billion years ago was far cooler than has been thought, according to researchers who analyzed isotope ratios in rocks formed on that ancient ocean floor. ... > full story -
Warm-Blooded Dinosaurs Worked Up A Sweat
November 11, 2009 — Were dinosaurs "warm-blooded" like present-day mammals and birds, or "cold-blooded" like present day lizards? The implications of this simple-sounding question go beyond deciding whether or not you'd ... > full story -
Central Africa's Tropical Congo Basin Was Arid, Treeless In Late Jurassic
November 11, 2009 — The lush, tropical Congo Basin was much different 150 million to 200 million years ago when dinosaurs roamed Gondwana, the single continent formed by Africa and South America. Geochemical analysis of ... > full story -
New Fossil Plant Discovery Links Patagonia to New Guinea in a Warmer Past
November 10, 2009 — Fossil plants provide clues as to what our planet looked like millions of years ago. Identifying fossil plants can be tricky, however, when plant organs fail to be preserved. Researchers recently ... > full story -
Discovery Of The Oldest European Marsupial In Southwest France
November 9, 2009 — Remains of one of the oldest known marsupials have been recovered in Charente-Maritime, France, by palaeontologists. This discovery raises a new hypothesis about the dispersal route of the earliest ... > full story -
Seafloor Fossils Provide Clues To Climate Change
November 8, 2009 — Deep under the sea, a fossil the size of a sand grain is nestled among a billion of its closest dead relatives. Known as foraminifera, these complex little shells of calcium carbonate can tell you ... > full story -
Male Sabertoothed Cats Were Pussycats Compared To Macho Lions
November 6, 2009 — Despite their fearsome fangs, male sabertoothed cats may have been less aggressive than many of their feline cousins, says a new study of male-female size differences in extinct big ... > full story
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