Ocean Life Facts

Sharks, dolphins, octopuses, and the incredible creatures that rule the seas.

Sharks

450 million years of evolution made the ocean's most perfect predator.

4 reading levels: Rookie · Curious · Sharp · Expert

Dolphins

They sleep with one eye open, call each other by name, and might be smarter than we think.

4 reading levels: Rookie · Curious · Sharp · Expert

Octopuses

Three hearts, blue blood, nine brains, and the ability to squeeze through almost anything.

4 reading levels: Rookie · Curious · Sharp · Expert

Sea Turtles

Seven living species, an internal compass tuned to Earth's magnetic field, and ancestors that swam with the dinosaurs.

4 reading levels: Rookie · Curious · Sharp · Expert

Great White Shark

The ocean's most famous predator: 20 feet (6 m) long, 300 serrated teeth, and a sense of smell that can detect one drop of blood in 25 gallons (100 L) of water.

4 reading levels: Rookie · Curious · Sharp · Expert