Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
12
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328
Cows can sleep standing up, but they can only dream lying down.
745
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12