The Australian bushfires have killed an estimated 1.25 billion animals

Australia's biodiversity has taken a massive hit during the recent bushfires.

Bushfires have caused an unprecedented level of damage to Australia's biodiversity. Source: AAP

Around 1.25 billion animals may have been killed during Australia's horror bushfire season, according to the World Wide Fund for Nature (WWF).

"This heart-breaking loss includes thousands of precious koalas on the mid-north coast of NSW, along with other iconic species such as kangaroos, wallabies, gliders, potoroos, cockatoos and honeyeaters," WWF-Australia CEO Dermot O'Gorman said in a statement on Tuesday.

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