The catalog

Every predator profile

33 ocean hunters, from reef ambushers to deep-sea giants. Filter by group, ocean, habitat, prey or conservation status, then open any profile for the full account.

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Other Ocean Hunters An emperor penguin standing upright on sea ice, showing its black head and back, white belly, and the yellow-orange patches on its neck and lower bill.

Emperor Penguin

Aptenodytes forsteri

The largest penguin and the deepest-diving bird, breeding on Antarctic fast ice through the polar winter and fasting for months at a time.

Length 3.3–4.3 ft Near Threatened
Other Ocean Hunters A leatherback sea turtle swimming in open blue water, its dark blue-black skin flecked with pale spots and its ridged, teardrop-shaped carapace tapering to a point.

Leatherback Sea Turtle

Dermochelys coriacea

The largest and deepest-diving turtle, a warm-bodied ocean wanderer that lives almost entirely on jellyfish and other gelatinous drifters.

Length 4.3–7.2 ft Vulnerable
Other Ocean Hunters A polar bear with thick cream-white fur, a long neck and small rounded ears standing on pack ice, its black nose and dark eyes clearly visible.

Polar Bear

Ursus maritimus

A sea-ice hunter classified as a marine mammal, the largest living bear, and almost entirely dependent on frozen ocean for its food.

Length 5.9–9.8 ft Vulnerable