Yancey, I don’t think sharks “drown” if they don’t “move”.
What you are thinking about is the fact that fish have a swim bladder, and sharks don’t. Fish can regulate their center of mass by filling their swim bladder with water, and thus float in the same place without expense of energy. Sharks must continually “swim” in order to stay in the same place, just like we have to agitate ourselves to stay in the same place in the swimming pool (unless we can stand).
But sharks do have other means to conserve energy while floating, so even that is misleading.
Either way, I don’t think that’s related to the killing of the shark. The octopus simply killed the shark just like an octopus kills any fish. I don’t know much about it, but I’d think that the octopus applies pressure in the animal in order to cause internal bleeding.
(Btw, interestingly, the fish bladder evolved to be our lungs.)
Sharks have a great weakness if memory serves- they must be in continual motion, or they drown.
Yancey, I don’t think sharks “drown” if they don’t “move”.
What you are thinking about is the fact that fish have a swim bladder, and sharks don’t. Fish can regulate their center of mass by filling their swim bladder with water, and thus float in the same place without expense of energy. Sharks must continually “swim” in order to stay in the same place, just like we have to agitate ourselves to stay in the same place in the swimming pool (unless we can stand).
But sharks do have other means to conserve energy while floating, so even that is misleading.
Either way, I don’t think that’s related to the killing of the shark. The octopus simply killed the shark just like an octopus kills any fish. I don’t know much about it, but I’d think that the octopus applies pressure in the animal in order to cause internal bleeding.
(Btw, interestingly, the fish bladder evolved to be our lungs.)