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Zaglossus hacketti

Zaglossus hacketti was a species of echidna that was the largest monotreme to ever live, reaching 66 pounds. Although Z. hacketti is thought to have gone extinct over 10,000 years ago, occasional reports of giant echidnas in the Australian wilderness persist into the present day.

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Zaglossus hacketti

Mammal, Monotreme


Australian cryptid


Savannah-dwelling, Desert-dwelling


insectivore, Out-of-scale, Lazarus taxon, Featured in Native folklore

Zaglossus hacketti was a species of echidna that inhabited Western Australia, and probably other areas of Australia in the Pleistocene. They reached as much as 3.5 feet long and 65 pounds. Although they’re generally accepted to have gone extinct about 10,000 years ago, there are still occasional sightings. In 2001, a biologist from the University of Adelaide, Kristofer Helgen was told by a 90-year-old aboriginal woman that there used to be enormous echidnas the size of dogs from where she lived in Kununurra, in the East Kimberly region of Western Australia.

On March 2nd, 2019, cryptozoologist and Fortean researcher Lon Strickler received an Email from an anonymous person who claimed to have seen a Zaglossus hacketti in the Tinderbox Forest in Tasmania in 2008. The emailer claimed that when they were walking up a hill, they saw a large black animal on the road about 150 feet away. He assumed it was a wombat, but when he got closer he realized it was a massive echidna, noting its distinctive long snout and spines. It was about 3.5 feet long and 50 cm wide. He didn’t realize what he saw was an unidentified animal until years later when he found out that the only echidna species that was ever that large was extinct, and wasn’t even thought to have lived in Tasmania.

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