The blobfish (Psychrolutes marcidus) is a deep-sea fish that lives in the waters off the coast of Australia and Tasmania. It is a bottom-dwelling fish that lives at depths of up to 2,800 meters (9,200 feet). The blobfish is known for its gelatinous body and lack of muscle tone. This is because the water pressure at the depths where it lives is so great that it would crush a fish with a more rigid body. The blobfish's body is made up of a gelatinous substance that is mostly water. This allows it to withstand the pressure of the water and maintain its shape.
The blobfish is also cold-blooded, meaning that its body temperature is regulated by its surroundings. This is in contrast to warm-blooded animals, which can maintain a constant body temperature regardless of the temperature of their surroundings. The blobfish's cold-bloodedness allows it to survive in the cold waters of the deep sea.