SYDNEY (July 12) - Forget cute, cuddly marsupials. A team of Australian paleontologists say they have found the fossilized remains of a fanged killer kangaroo and what they describe as a "demon duck of doom." A University of New South Wales team said the fearsome fossils were among 20 previously unknown species uncovered at a site in northwest Queensland state. Professor Michael Archer said on Wednesday the remains of a meat-eating kangaroo with wolf-like fangs were found as well as a galloping kangaroo with long forearms that could not hop like a modern kangaroo. "Because they didn't hop, these were...