Explores the size of Australia's most famous extinct megafaunal mammal, diprotodon optatum, other cool diprotodon facts, and why it's not OK to call diprotodon a giant wombat.

Examines whether Australia's fierce marsupial predator thylacoleo carnifex had the most powerful bite of any living or extinct mammal, some incredible facts and a surprise wildcard.

An explanation of why Australia's extinct kangaroo, procoptodon goliah, is called the T-rex of roos, some amazing facts about this giant kangaroo from the pleistocene, and a warning that it's important to acknowledge that it was a real roo's roo.

Explores the difference between Australia's extinct flightless bird genyornis newtoni and an emu, what we know about genyornis from the fossil evidence, and why this big bird was the original party animal.

Insight into whether Australia's extinct super-predator megalania (Varanus priscus) was the world's largest ever land lizard, the giant reptile's incredible adaptations, and why nobody should tell this dragon just how scary it is.

Explores whether palorchestes azael was the most unusual marsupial that existed in Australia's pleistocene era, why its fossils are such a puzzle, and the fact it's the most individual of individuals among megafauna.