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Braindump
Several species of sharks are known to live in freshwater environments, but whether they should be considered true freshwater fish is debatable. Probably the most mysterious are the river sharks of the genus Glyphis. Fewer than ten species have been
How It Works3 min read
Munching Molars And Ferocious Fangs
Whether they’re chewing on grass, tearing through flesh or fighting off a foe, teeth are an essential survival tool for the world’s animals. A tooth is a layered structure made from hardened calcium carbonate that erupts from a vertebrate’s jaw and i
How It Works16 min read
Global Eye
Scientists have made a stem cell breakthrough in elephants that could mean researchers are one step closer to bringing back long-extinct woolly mammoths. Colossal Biosciences’ woolly mammoth team says it has successfully derived induced pluripotent s

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