The Chilean Blob was a 13-tonne mass of tissue discovered on Pinuno Beach in Los Muermos

Los Muermos

Los Muermos is a city and commune in Llanquihue Province, Los Lagos Region in southern Chile.-Demographics:According to the 2002 census of the National Statistics Institute, Los Muermos spans an area of and has 16,964 inhabitants . Of these, 5,707 lived in urban areas and 11,257 in rural areas...

, Chile

Chile

Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...

 in July 2003. It made headlines around the world because biologists were unable to identify it, and were speculating that it was the remains of some species of giant octopus

Octopus

The octopus is a cephalopod mollusc of the order Octopoda. Octopuses have two eyes and four pairs of arms, and like other cephalopods they are bilaterally symmetric. An octopus has a hard beak, with its mouth at the center point of the arms...

 previously unknown to science.

In June 2004, it was reported that fragments of DNA found in the blob had been found to match that of a sperm whale

Sperm Whale

The sperm whale, Physeter macrocephalus, is a marine mammal species, order Cetacea, a toothed whale having the largest brain of any animal. The name comes from the milky-white waxy substance, spermaceti, found in the animal's head. The sperm whale is the only living member of genus Physeter...

: the blob was merely the partial remains of a dead sperm whale, specifically a large mass of adipose tissue

Adipose tissue

In histology, adipose tissue or body fat or fat depot or just fat is loose connective tissue composed of adipocytes. It is technically composed of roughly only 80% fat; fat in its solitary state exists in the liver and muscles. Adipose tissue is derived from lipoblasts...

.