Shrimp Hiding in Sand, Florida

Photograph by Robert F. Sisson

Shunning light, a pink shrimp buries itself in aquarium sand except for its feelers and golf-ball eyes. To avoid predators, they'll burrow even deeper, leaving only a tiny hole for breathing.

(Photo shot on assignment for "Shrimp Nursery—Science Explores New Ways to Farm the Sea," May 1965, National Geographic magazine)