Octopuses have 3 hearts. They also have blue blood and its because the protein they have called haemocyanin has copper instead of iron.
YOU ARE READING
The Big Book Of Random Facts
RandomFilled with weird and wacky facts, nothing in particular :)
Fact 2
Octopuses have 3 hearts. They also have blue blood and its because the protein they have called haemocyanin has copper instead of iron.
