Lobsters have blue blood.
476
A group of unicorns is called a blessing.
304
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
A puppy is born blind, deaf, and toothless.
16
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57