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Using their impressive teeth, these spotted ragged-tooth sharks have no problem catching their prey 🦈
#SharksUpClose with Bertie Gregory is now streaming on @DisneyPlus and @hulu.
@NatGeo Ragged-tooth sharks' serrated dentition evolved 400M years ago, with each tooth containing osteodentin - a rare bone-like tissue (Reif, 1973). They replace teeth every 8-10 days, one of nature's most efficient regenerative systems.
