"An investment in knowledge pays the best interest." -Benjamin Franklin
Thursday, November 1, 2012
Why don't deep-sea fish get crushed by pressure?
Unlike humans, many species of fish are able to survive the pressure of the deep ocean. Deep-sea fish can survive this pressure because there is a negligible pressure difference between their insides and the water. In other words, they don't have any spaces full of air to be crushed. A gas-filled organ often found in fish, a swim bladder, is missing in deep-sea fish. Without this bladder, deep-sea fish do not have to worry about being crushed.