Lobsters have blue blood.
476
Mosquitoes don't just bite you, they also pee on you.
11
Your heart will pump about 212 million liters in its lifetime.
26
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
22
20 minutes after smoking a cigarette, blood pressure drops to normal.
37
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12