(PhysOrg.com) -- By examining the development of bones in the vertebral column, limbs, and ribcage, scientists at the University of Cambridge have discovered how sloths evolved their unique neck skeleton.
Plants & Animals
Oct 18, 2010
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(PhysOrg.com) -- New studies of the movements of sloths have revealed more information about how they move around in the trees, traveling upside down.
(PhysOrg.com) -- A biochemical analysis of a rare Clovis-era stone tool cache recently unearthed in the city limits of Boulder, Colo., indicates some of the implements were used to butcher ice-age camels and horses that roamed ...
Archaeology
Feb 25, 2009
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