Present day Emperor penguins like this would have been dwarfed by the giant find.
Scientists in New Zealand have discovered an extinct penguin known as Kumimanu biceae that was 1.77m tall.
Gone since 1936, and ailing since long before that.
Tasmanian Museum and Art Gallery
The new Tasmanian tiger genome reveals some fascinating facts about this extinct marsupial, including why they were so similar to dogs, and how they were growing more vulnerable to genetic disease.
An impression of what it could have looked like: a giant lizard, Megalania, stalks a herd of migrating Diprotodon, while a pair of massive megafaunal kangaroos look on.
Studies of the fossil teeth of the three-tonne Diprotodon have revealed the now-extinct beast was Australia's only known seasonally migrating marsupial.
Giant sloths: killed by rainy weather?
A burst of wet weather could have helped to kill off mammoths and other large herbivores, by transforming much of the world's grasslands into bogs and forests and depriving megafauna of food.
What it could have looked like when humans and megafauna lived together: a giant macropod
Procoptodon goliah in the foreground, while Thylacinus cynocephalus hunts for prey nearby. A herd of Zygomaturus can be see on the lake edge of the ancient Willandra system.
Illustration by Laurie Beirne
The extinction of the giant reptiles, marsupials and birds that once called Australia home has been the subject of much debate, including the role early Australians may have had on their fate.
Diprotodon, the largest ever marsupial, probably died out at human hands.
Peter Murray (courtesy of Chris Johnson)
What killed off Australia's giant wombats and other megafauna? New dating once again points the finger at human hunters, rather than abrupt changes to the climate.
An artist’s reconstruction of what the giant bird Dromornis would look like. Genyornis would be similar but slightly smaller.
Our entire knowledge of one of Australia's extinct ancient giant birds is flawed because experts have been looking at remnants of the wrong egg the whole time.
Abrupt warming events may have helped kill off megafauna species like the mammoth.
AAP Image/James Shrimpton
New research challenges previously held views that the Ice Age, giant biblical floods or hunting by humans were the key drivers behind the disappearance of megafauna.
Animals that couldn't adapt to rapid warming quickly succumbed.
A decade-long research project has revealed the diets of extinct Antarctic megafauna – as well as uncovering potential reasons…
Megafauna such as Glyptodon were muck-spreaders.
If Earth were like a human body, large animals might be its arteries, moving nutrients from where they’re abundant to where they’re needed. Currently the planet has large regions where life is limited…
Contrary to previous research, climate change has been found not guilty of causing the mass extinction of giant Australian…