The Japanese giant spider crab (Macrocheira kaempferi) is a species of marine crab and is the largest crab found in the waters around Japan. [2] At around 3.75 meters (12 ft), it has the largest leg-span …

Japanese Spider Crab With its impossibly long legs and alien-like appearance, the Japanese spider crab is one of the most extraordinary crustaceans in the ocean. Native to the waters of Japan, it holds the …

Oct 19, 2025 · Its carapace (shell) measures about 15 inches (38 cm) across, while its legs stretch up to 12 feet (3.7 m) from claw to claw. When compared to a human, its leg span can be nearly twice an …

The carapace (main body cavity) of the Japanese spider crab is 12 inches (30 centimeters) across. But its legs, which continue to grow even once it reaches adulthood, can span up to 12 feet (3.8 meters) …

Apr 9, 2025 · The Japanese giant spider crab (Macrocheira kaempferi) is famous for its size. The chelipeds (the legs with claws) on the males of the species can stretch over 12 feet (3.7 meters) from …

Japanese spider crabs will grow to about 15 inches (38 cm) wide and the animal can weigh up to 44 lbs. (20 kg). Males are larger than females and have larger claws.

They may look like something from a 1950s sci-fi film, but Japanese spider crabs are gentle giants. And giants they are. Of the 60,000 species of crustaceans on Earth, Japanese spider...

As its name suggests, the Japanese spider crab resembles a spider, although it has 10 limbs instead of eight. It is the largest arthropod, its maximum size is 12 feet (3.7 m) across, with its body growing …

It has the largest leg-span out of all arthropods. They can have leg-spans wider than two full grown men. These long legs are covered in small spikes which are also known as tubercles. The Japanese …

Apr 29, 2025 · Arthropods are a family of critters that includes insects, spiders, and crustaceans. The Japanese spider crab's size is impressive. Its legs average 12 to 18 feet long, continuing to grow …