Lobster is the largest species in the shrimp family, and hydrangea lobster is the largest species among lobsters. Lobsters wear helmets and armor. Their "armor" is very hard. They have many thorns on their heads and chests, two long prickly tentacles and ten stout feet. Lobsters have no other weapons except the thorns on the head and chest. They are slow and clumsy and easy to catch. Lobsters live in warm seas. It lives at the bottom of the sea, hides in cracks in rocks during the day and comes out to feed at night.

1934, a big lobster was caught off the coast of North America. It is 1.22 meters long and weighs 19 kilograms. Its tentacles are several feet long, its eyes and eyestalks are thicker than its thumb, and its body is as big as a dog. Up to now, it holds the record of the largest lobster, which can be said to be the largest lobster at present.