The Coral Sea Snake. It is about the most highly venomous snake you can get on this side the planet. And it lives in a tough neighborhood: the sea. Actually, bites to humans are pretty rare. That's not an invitation to handle one of these many aquatic snakes. Why tempt fate? If you don't live near the water near the Pacific, Indian, or Oceania, you can just think they're cute. Which they are. Just a deadly sort of cute.
They are definitely critters with mind-blowing abilities. If they were people, we'd make them wear spandex suits and solve our problems.