Sharks are the most feared predators in the sea, and their survival hinges on fearsome teeth that regrow throughout their lives. But changes in the ocean's chemistry could put those weapons at risk.
After surfing for 35 years, David Steiner knows he’s sharing the ocean with sharks — and he wants to catch them on video. During the past week, he spent hours taking drone videos of sharks swimming ...
This is read by an automated voice. Please report any issues or inconsistencies here. PORTLAND, Maine — Sharks are the most feared predators in the sea, and their survival hinges on fearsome teeth ...
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