A rendering of Clavusodens mcginnisi, or “McGinnis’ nail tooth,” an ancient shark that stalked the ocean floor 340 million years ago. Rendering courtesy of the National Park Service A shark no larger ...
PORTLAND, Maine — 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 ...
Where are the best places and when to search for shark teeth? Why are some blackish and some brownish? How old are they likely? This column obliges.
STANFORD, Calif. (KGO) -- If you ever come face-to-face with the wrong kind of shark, there's something you probably want to avoid. Just a hint: they're long and really sharp. But now, researchers at ...
The fearsome teeth that define sharks as the ocean's apex predators, and are crucial for their survival, are now under threat from changing marine chemistry. A new study suggests that increasing ocean ...
Another new species of ancient shark has been discovered at Mammoth Cave National Park.According to a post from the park, an ongoing Paleontological Resource Inventory discovered the new species while ...
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