Favorites - Piotr Naskrecki

The mass spawning of Atlantic horseshoe crabs (Limulus polyphemus) is one of the greatest spectacles of the natural world. Each year hundreds of thousands of these animals come ashore along the East Coast of the US to lay billions of eggs in the sand. This behavior helps avoid predation on eggs by fish, but exposes them to birds. I took this photo on a beach of the Delaware Bay.

Atlantic horseshoe crabLimulus polyphemusXiphosuridavertical