The wonky-eyed jewel squid has a left eye much larger than its right.
The big eye looks up for food, the small one looks down for predators.
One newly discovered creature, the fangtooth, has teeth longer than its head.
When it shuts its mouth, its teeth fit into sockets so it doesn't pierce its own brain!
The creatures are unusual because they adapt to being very deep down where the pressure's really great and it's totally dark.