As Ocean Water Gets Worse, Sharks' Teeth Start to Dissolve
Sharks have been on this planet for more than 400 million years. They’re older than the first trees, the North Star, and even the rings of Saturn. They’ve seen and…
Sharks have been on this planet for more than 400 million years. They’re older than the first trees, the North Star, and even the rings of Saturn. They’ve seen and…