At www.livescience.com/45342-crocs-killed-dinosaurs-with-death-rolls.html … huge crocodiles killed their dinosaur prey by spinning their bodies in death rolls. They were some 40 feet in length – but modern salt water crocodiles (known to go for sharks) can be up to 23 feet long. The paper is published in Historical Biology journal (April 16th).
at http://umorf.ummp.lsa.umich.edu/wp/ we have some fossils of the Ice Age – and palaeontological specimens galore. See also http://archaeologynewsnetwork.blogspot.co.uk/2014/05/palaeontologists-un… … which has a short video and talk.