
(Click to enlarge image) Census of Marine Life - Photo of the Week: Antarctic ice fish. (Photo: Julian Gutt/ Alfred Wegener Institute)
The Antarctic ice fish does not have red blood pigments (hemoglobin) nor red blood cells. This is an adaptation to the low temperature. The blood becomes more fluid, as a consequence, the animals saves energy to pump blood through their body. Interestingly the brittle stars are overgrown by a yellow sponge.
Photo: Julian Gutt/ Alfred Wegener Institute. Read the full story »