All About The Giant Isopod: A Deep Sea Creature

All about the Giant Isopod

Photo: Darren Lynch via Getty Images

Giant isopods are some of the most unique and interesting creatures in the sea, but many people don't know about them. 

Giant isopods are some of Earth's most unique and interesting creatures, but many people don't know about them.

Our giant isopod article will teach you everything you need to know about these fascinating deep-sea creatures.

We have it all covered, from their diet and habitat to their reproduction methods and conservation status.

Description and Appearance

Photo: DigiPub via Getty Images

The giant isopod (Macrocheira kaempferi) is a species of crustacean that lives in the deep ocean. They are the largest members of the order Isopoda that can reach up to 2 feet in length and weigh over 12 pounds.

It has a reddish-brown body with a flattened head and tail, and its legs are equipped with strong claws for clinging to the ocean floor.

Giant isopods are scavengers that feed on dead fish, shellfish, and other marine animals. They can survive in very deep water, with little oxygen or light available. Although they are not considered endangered, their populations have declined due to fishing activities in some areas.

Giant isopods are fished for human consumption in some parts of the world, and they are considered a delicacy. However, they are not often caught commercially because they live in such deep waters.


The giant isopod's diet consists of mostly dead and decaying plant and animal matter. Since they live in the ocean, they scavenge on the ocean floor for food.

They have been known to eat dead fish, crabs, clams, sea urchins, and sometimes even smaller isopods. They are also cannibalistic and will eat other giant isopods if they can.


The reproductive habits of the giant isopod are interesting. Females can store sperm for up to two years and use it to fertilize eggs as needed. Fertilized eggs are brooded inside the female's body, and once they hatch, the young isopods climb onto their mother's back, where they will stay until they are ready to fend for themselves.

Interestingly, there has been one documented case of a male giving birth. In 2002, a Japanese aquarium displayed an exhibit featuring a male giant isopod who had given birth to viable offspring.

Scientists believe that this was only possible because the male had been kept in captivity and was able to receive regular feedings from his caretakers - in the wild, it is unlikely that a male would be able to find enough food to sustain itself and produce offspring.


Swiss-born scientist Alexander Agassiz collected the first giant isopod in 1879. Agassiz, a noted ichthyologist (fish expert), discovered the creature while studying marine life in the Gulf of Mexico.

Since that time, giant isopods have been found in all the world's oceans, at depths of up to 2,000 meters.

Interestingly, they are most commonly found near hydrothermal vents and cold seeps - habitats rich in food and quite hostile to other forms of life.

Lifelike Giant Isopod Soft Stuffed Plush Toy

Gage Beasley’s Lifelike Giant Isopod Soft Stuffed Plush Toy

Gage Beasley’s Lifelike Giant Isopod Soft Stuffed Plush Toy is made of soft material and is very huggable. It's a great addition to any collection and would make a perfect gift for someone special. The toy is made of high-quality materials and will last for years. It's also straightforward to care for; surface clean with a damp cloth as needed.

This giant stuffed isopod measures 30 cm (11.8") long and 12 cm (4.7") wide, making it the perfect size for cuddling. The soft plush material feels great against your skin, while the PP cotton filling makes it firm yet flexible. Plus, the toy is easy to care for; surface clean with a damp cloth as needed.


Although they may look strange and frightening, giant isopods are exciting creatures.

They have a unique reproductive system and can survive in some of the most hostile environments on Earth.

If you're looking for a unique plush toy that's sure to please, be sure to check out our realistic giant isopod stuffed plush toy!

Thanks for reading!



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