These gigantic jellyfish live in the Arctic, Atlantic, and Pacific Oceans. Common in English Channel, North Sea, and Irish Sea. 7-foot-wide bell, 120-foot tentacles. Jellyfish stings are painful but rare.
Lion’s Mane Jellyfish
The sperm whale is the largest toothed whale and sole extant member of its genus. Despite its size, its tendency of descending to great depths to feed makes it mysterious.
Sperm Whale
Blue whales are the largest mammals ever. Dinosaurs are dwarfed. They follow krill around the world's oceans. Giant krill-eaters. 100-foot-long, 199-ton ships.
Blue whales
The world's largest, gentlest fish. The 60-foot whale shark is a filter feeder. It eats plankton and krill by filtering them using its gills. The big shark isn't deadly to humans, despite its size.
Whale Shark
The whale shark dwarfs this 26-foot fish. In temperate waters, basking sharks migrate. It eats plankton and invertebrates like the whale shark. In summer, these slow-moving sharks eat near the surface.
Basking sharks
This North Pacific octopus may weigh 110 pounds and stretch over 20 feet. Some records show 300-pounders. It eats crabs, mollusks, fish, and smaller octopi.
Giant Pacific Octopus
The ocean sunfish is distinctive due to its elongated, flat body and small tail. Flopping around in the sun is how they got their moniker. Sunfish as large as 10 feet long and weighing 5,074 pounds have been recorded.
Ocean Sunfish
These saltwater crabs have the world's biggest leg span of any animal. They can be 12 feet long and have a 16-inch carapace. Spider crabs can weigh 42 pounds.
Japanese Spider Crab
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