CPM0657 An upside down dog with her teeth sticking out has been compared to a vampire bat. Ben Vidalis was relaxing at home on February 12 when his pet pooch Birdie was lying on her back. Funny ...

Researchers in Australia have discovered fossils of two enormous predators that lived alongside one another, upending ideas about how the ancient ecosystem operated down under 120 million years ago.

Australia's unique Cretaceous ecosystem therefore had an "upside-down" dynamic ... these secrets and building a picture of how these animals looked, differed, and behaved within their environment ...