Ocean
Master of open marine waters, balancing salinity through osmoregulation and traversing major planetary currents.
Southern Stingray
A diamond-shaped digger that flaps its fins to uncover prey and finds it by its electric field.
Staghorn Coral
An antler-shaped coral that can grow up to 8 inches of branch a year, yet lost 97 percent of its numbers to one disease.
Striated Frogfish
The lure-twitching frogfish whose surprise attack pulls in prey within six milliseconds as its mouth expands up to twelve times.
Swordfish
A fish with a heater for its brain and a flattened bill it apparently uses to slash prey.
Thorny Seahorse
A seahorse with extremely sharp spines, a crown on its head and fathers that carry the babies.
Vaquita
A shy porpoise with the smallest range of any whale, dolphin or porpoise
Walrus
Tusks up to three feet long, hundreds of sensitive whiskers, and the bulk of the third-largest pinniped.
Wandering Albatross
Perhaps the longest wingspan of any bird, and in a year off from breeding some circle Antarctica twice or even three times.
West Indian Manatee
A gentle sea cow whose dense bones may help keep it neutrally buoyant, and whose weak low-frequency hearing may be part of why boats keep hitting it.
White-Spotted Pufferfish
A 12-centimeter pufferfish that spends 7 to 9 days digging a sand circle about 2 meters wide to impress a date.
Yellowfin Tuna
A warm-muscled torpedo that can swim across an entire ocean.