Noble heart
By Ellson on 2009-04-08 03:04:30
Octopuses have three hearts and their blood is blue.
Details :
The main heart pumps blood through the body while the other two pump blood through the gills.
Its blood is blue, and not red like in vertebrates, because hemocyanin is used to transport oxygen instead of hemoglobin.
Read an other one
Our blood is blue right?