I was amazed at that as well about the Elephant Seal. "One final note about life in the abyss: not all intruders from the lighted world are ROVs or submarines.

I was amazed at that as well about the Elephant Seal. "One final note about life in the abyss: not all intruders from the lighted world are ROVs or submarines. A southern elephant seal tagged by Census project TOPP recently dove down 2,388 meters (~1.5 miles) from the surface. At that depth, water pressure is roughly equal to 240 times the air pressure at sea level. The human eardrum can rupture at 10 meters" http://www.coml.org/comlfiles/press/CoML_Beyond_Sunlight_11.17.2009_Public.pdf http://www.coml.org/comlfiles/press/CoML_Beyond_Sunlight_11....