Sealife guideThe Sphyrnidae familyThe taxonomy of marine species

Explore the taxonomy of the sea vertebrates including the cetaceans like the whales or the dolphins, the sea birds, the fish, the sharks and the sea turtles !

The order Carcharhiniformes is the largest shark group, characterized by their nictitating membranes, diverse sizes and varied diets ranging from small fish to marine mammals.

The hammerhead shark family includes 11 recognized species of sharks

Bonnethead shark
(Sphyrna tiburo)

Great hammerhead shark
(Sphyrna mokarran)

Hammerhead sharks

Scalloped hammerhead
(Sphyrna lewini)

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Monday, September 7th 2026

The wedgetail triggerfish

Discover the wedgetail triggerfish, Hawaii's famous state fish. Learn about its vibrant colors, coral reef habitat, unique behavior, and cultural significance in Hawaii.

Saturday, September 5th 2026

The Kemp's ridley sea turtle

The Kemp's ridley sea turtle is the smallest of the seven species of sea turtles and one of the most endangered. Discover this fascinating species, its unique biological characteristics, and its remarkable mass nesting behavior known as an arribada, when thousands of females gather on beaches to lay their eggs.

Friday, August 28th 2026

The skunk cleaner shrimp

Discover the skunk cleaner shrimp (Lysmata amboinensis), a small tropical shrimp famous for cleaning parasites and debris from reef fish.

Photo of the Day

Padine
(Padina pavonica)