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The four tree-climbing species are Australian freshwater crocodiles, American crocodiles, Central African slender-snouted crocodiles and Nile crocodiles. ... The height up to which these species could climb depended on their size. As per the researchers, smaller crocodiles were able to climb more higher than the bigger ones. Some were able to climb four to five meters high. In addition to climb trees, earlier research on crocodilians, including crocodiles, caimans and alligators, revealed that they use tools like twigs and branches to trap birds. The reptiles hold a twig to gain attention of nesting birds towards itself. As soon as the...

Crocodiles are often thought of as living fossils, remaining unchanged since the time of the dinosaurs. But scientists have shown this is not always the case and that 150 million years ago, their feeding mechanisms were more similar to some mammals living today, the killer whales. An international team led by Dr Mark Young of the University of Edinburgh, and including Dr Lorna Steel at the Natural History Museum, studied two species of extinct marine dolphin-like crocodylians, Dakosaurus maximus and Plesiosuchus manselii. Their research is published today in the journal PLoS One. Dakosaurus and Plesiosuchus were among the top predators...