(Phys.org)— A new study, published online in Biology Letters on September 19, has utilized a massive molecular dataset to reconstruct the evolutionary history of lizards and snakes. The results reveal a surprising finding ...
Evolution
Sep 19, 2012
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An elaborate system of leads spreads across our hearts. These leads – the heart's electrical system – control our pulse and coordinate contraction of the heart chambers. While the structure of the human heart has been ...
Other
Sep 14, 2012
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A new study of giant viruses supports the idea that viruses are ancient living organisms and not inanimate molecular remnants run amok, as some scientists have argued. The study reshapes the universal family tree, adding ...
Evolution
Sep 13, 2012
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Ever since Darwin first published The Origin of the Species, scientists have been striving to identify a last universal common ancestor of all living species. Paleontological, biochemical, and genomic studies have produced ...
Cell & Microbiology
Jul 26, 2012
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(Phys.org) -- Modern cats diverged in skull shape from their sabre-toothed ancestors early in their evolutionary history and then followed separate evolutionary trajectories, according to new research from the University ...
Plants & Animals
Jul 10, 2012
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When it came to eating, an upright, 2-million-year-old African hominid had a diet unlike virtually all other known human ancestors, says a study led by the Max Planck Institute of Evolutionary Anthropology in Leipzig, Germany ...
Archaeology
Jun 27, 2012
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At first glance, it's hard to see how a common house sparrow and a Tyrannosaurus Rex might have anything in common. After all, one is a bird that weighs less than an ounce, and the other is a dinosaur that was the size of ...
Archaeology
May 27, 2012
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In classical mythology, the cypress tree is associated with death, the underworld and eternity. Indeed, the family to which cypresses belong, is an ancient lineage of conifers, and a new study of their evolution affords a ...
Plants & Animals
May 3, 2012
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The first study into rarely documented ground-nest building by wild chimpanzees offers new clues about the ancient transition of early hominins from sleeping in trees to sleeping on the ground. While most apes build nests ...
Plants & Animals
Apr 16, 2012
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The feeding habits of mammals haven't always been what they are today, particularly for omnivores, finds a new study.
Plants & Animals
Apr 16, 2012
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