Animals
Which animal has blue blood?
Horseshoe crab
Background
The horseshoe crab has light blue blood. This comes from copper instead of iron in the blood. Doctors use this blood to test vaccines for purity. One liter can cost up to 13,000 euros. He has lived on Earth almost unchanged for 450 million years.
More Animals questions
How many species of crocodiles exist in Africa?
See questionHow many eggs can a kingfisher lay at one time?
See questionHow many bones does a rat have in its body?
See questionWhich bird can fly backwards?
See questionHow many kilograms does the largest lobster ever caught weigh?
See questionWhere do Europe's only wild monkeys live?
See question