The Daily Galaxy on MSN
2,000-Foot Tunnels Found Underground, Scientists Say Giant Sloths Dug Them
In a discovery that challenges long-standing views of prehistoric life, scientists have uncovered vast underground tunnels ...
Sloths may seem like quirky tree-dwellers today, but their past reveals a dynasty of giants that once roamed the Americas.
History Snob on MSN
20 Facts About The Ice Ages You've Probably Never Heard Before
Earth has been in a constant temperature battle long before humanity was even an idea. Our green planet has warmed and cooled ...
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