A mysterious skull buried in the Australian outback for millennia is turning everything we thought we knew about a lost giant bird on its head.

To uncover the mystery, dive into the fascinating anatomy of this creature and explore ... At first glance, a snail's mouth appears no larger than the head of a pin, and thus the idea of having ...

mouth, throat and voice box. It would also have to make changes to the protein that copies its genes, the viral polymerase. This polymerase would need to switch from working well with bird ...