Adam Britton, a leading zoologist who has worked on BBC and National Geographic productions, pleaded guilty to 56 charges relating to bestiality and animal cruelty.
He also admitted to four counts of accessing child abuse material.
The Northern Territory (NT) Supreme Court heard the 53-year-old filmed himself torturing the animals until almost all died, and then shared the videos online under pseudonyms.
His abuse went unnoticed for years, until a clue was found in one of his videos. Britton was arrested in April 2022 after a search of his rural Darwin property, which also uncovered child abuse material on his laptop.
Both child abuse and animal abuse are treated far too leniently by the law. This guy should never be released.