Interesting Facts About The Japanese Spider Crab
The Japanese spider crab (Macrocheira kaempferi) is a species of marine crab that inhabits the Pacific Ocean near Japan. Known for its incredible size and unique appearance, this fascinating creature has captured the attention of people around the world. In this article, we'll explore some of the most interesting facts about the Japanese spider crab.
1. They Are the Largest Arthropods in the World
One of the most impressive things about the Japanese spider crab is its size. They can grow up to 3.8 meters (12.5 feet) from claw to claw and can weigh as much as 19 kilograms (41.9 pounds). This makes them the largest arthropods in the world. Their impressive size is due in part to their long lifespan - they can live for up to 100 years in the wild.
2. They Are Named After a Famous Scientist
The Japanese spider crab was first described in 1836 by the French zoologist Henri Milne-Edwards. He named the species after Engelbert Kaempfer, a German naturalist who first introduced Japan to Europe in the late 17th century. Kaempfer was known for his contributions to the field of natural history, and his name lives on in the scientific name of the Japanese spider crab.
3. They Are Expert Camouflagers
Despite their large size, Japanese spider crabs are expert camouflagers. They are covered in a rough, spiky exoskeleton that helps them blend in with their rocky underwater environment. They also have long, thin legs that allow them to hide between rocks and move easily across the ocean floor.
4. They Have an Interesting Mating Strategy
During the mating season, male Japanese spider crabs will search for females to mate with. However, because of their large size, they are unable to mate in the typical way. Instead, males will carry females on their backs for several weeks until the eggs are fertilized. This unusual mating strategy ensures that the female is safe from predators and that the eggs have the best chance of survival.
5. They Are a Popular Delicacy in Japan
Japanese spider crabs are a popular delicacy in Japan, where they are known as "takaashigani". They are often served steamed or boiled and are prized for their sweet, tender meat. However, their popularity as a food source has had a negative impact on their population, and they are now considered a vulnerable species.
6. They Have an Important Role in Japanese Folklore
Because of their impressive size and unique appearance, Japanese spider crabs have played an important role in Japanese folklore for centuries. They are often depicted as powerful and mysterious creatures, and are sometimes associated with the gods of the sea. In one famous story, a giant spider crab saves a fisherman from drowning and brings him to a magical underwater palace.
Overall, the Japanese spider crab is a fascinating creature that has captured the imaginations of people around the world. Whether you're interested in their impressive size, unique appearance, or important role in Japanese culture, there's no denying that these crabs are truly one of a kind.