The self-healing superpower of sharks
At three hundred feet, we are profoundly changed. The pressure at these depths is nine times that of the surface. The organs collapse. The heart beats at a quarter of its normal rate, slower than the rate of a person in a coma. Senses disappear. The brain enters a dream state. At six hundred feet down, the ocean’s pressure—some eighteen times that
... See moreJames Nestor • Deep: Freediving, Renegade Science, and What the Ocean Tells Us about Ourselves
The great white shark is the world's largest known predatory fish. It has 300 teeth, yet does not chew its food. Sharks rip their prey into mouth-sized pieces which are swallowed whole.
Just a moment...
The body of an octopus is remarkable enough. The common octopus, O. vulgaris, has eight armlike appendages, three hearts pumping blue blood, an ink-based defense mechanism, and highly developed jet propulsion. An octopus can change size, shape, texture, and color at will, and all at the same time if necessary.