KILLER KANGAROOS AND DEMON DUCKS OF DOOM

Ancient Australia's animals were even weirder than today's:

Vertebrate paleontologist Sue Hand said modern kangaroos look almost nothing like their ferocious forebears, which lived between 10 million and 20 million years ago.

The species found at the dig had "well muscled-in teeth, not for grazing. These things had slicing crests that could have crunched through bone and sliced off flesh," Hand said.

The team also found prehistoric lungfish and large duck-like birds.

"Very big birds ... more like ducks, earned the name 'demon duck of doom', some at least may have been carnivorous as well," Hand told ABC radio.

Kangaroos and ducks that can kill you back would certainly add an extra dimension to hunting.