Been pottering around the ocean looking exactly the same for about 500 million years, fair play to them.
Fun fact: The nautilus lineage has survived virtually unchanged for over 500 million years, predating dinosaurs by 265 million.
Biggest lizard on the planet and they've decided a few tiny Indonesian islands are all they need.
Fun fact: Long assumed to kill with bacteria-laden saliva, they were found in 2009 to have true venom glands.