4 ms·

I kept thinking "wow, that has to be the deepest diving air breathing animal here," and I kept being amazed at how deep some animals can dive.

• Barrin92 7y ago
  I was super surprised by the penguins, the emperor penguin dives 500 meters deep? That's impressive
• peteretep 7y ago
  Yah, mammals keep butting in all the way down to three k, which is much further than many animals I think of (incorrectly) as being bottom dwellers, like angler fish