Nudibranch on coral, Papua New Guinea, Pacific

A tiny shrimp (Periclimenes soror) lives on a pin-cushion starfish in Raja Ampat, Indonesia. This remote, tropical region is home to extraordinary marine biodiversity.

A colorful nudibranch, Phyllidia varicosa, crawls on a black sand seafloor in Alor, Indonesia.

A vibrant nudibranch, Phyllidia sp., feeds on sponges on a coral reef in the remote, tropical islands of Raja Ampat, Indonesia.

Phyllidia coelestis nudibranch, Beqa Lagoon, Fiji.

Phyllidia coelestis nudibranch on blue background, Beqa Lagoon, Fiji.

Nudibranch feeding on algae, Papua New Guinea.

Lemons (Citrons), Campania region, southern Italy, Europe

Khujand, Sughd Province, Tajikistan. Small bumpy yellow pomegranates at the Panjshanbe Bazaar in Khujand.

Horse and buggy, Santiago de Cuba, Cuba

Warthog

Zanzibar, Tanzania, Sand Patterns

Zanzibar, Tanzania, Sand Patterns

Ecuador, Galapagos Archipelago, Santa Cruz Island, Young boy photographing Galapagos Giant Tortoise (Geochelone elephantopus).

Bumpy ski slope

Battle Ground, full frame of detectable warning surface