In the 460-million-year-old Eriptychius, the researchers found large, open pulp cavities and branching dentin tubules — an ...

Hunting for a Legendary $1,000,000 Shark Tooth! 🦈💰🤿 Deep beneath the ocean lies one of the rarest shark teeth ever, rumored to be worth $1,000,000! 😱 We went on an insane scuba diving adventure to ...