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Scientific American6d
Ancient Tooth Proteins Rewrite the Rhino Family Tree—Are Dinosaurs Next?
Molecules from the 20-million-year-old teeth of a rhino relative are among the oldest ever sequenced, opening tantalizing ...
Smithsonian Magazine on MSN5d
Giant Sloths and Many Other Massive Creatures Were Once Common on Our Planet. With Environmental Changes, Such Giants Could Thrive Again
The largest sloth of all time was the size of an elephant. Known to paleontologists as Eremotherium, the shaggy giant ...