Bomb

Researchers Calculated a Whale Shark’s Age Based on Cold War-Era Bomb Tests by Theresa Machemer/Smithsonianmag.com Whale sharks are the world’s largest fish, recognizable by their white-speckled and striped backs. But as whale sharks age, they also gain stripes on their vertebrae. The layers, called growth bands, build up like the rings in a tree trunk, so the older a whale shark is, the more bands they have. Now, […]