Photo: J. Gutt/Alfred Wegener Institute for Polar and Marine Research
Yay for global warming! When a large ice shelf broke up due to global warming, scientists got a glimpse of a pristine ocean floor, which had been sealed off from the world for thousands of years.
This ice fish above is well-adapted to the cold polar water:
As an adaptation to the extreme cold of polar waters, the fish has no red blood cells. This makes its blood more fluid, so that the animal can save energy otherwise needed to pump blood through its body.