Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
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Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
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Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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An average cat has 1-8 kittens per litter and can have 2-3 litters per year. During her productive life, one female cat could have more than 100 kittens. A single pair of cats and their kittens can produce as many as 420,000 kittens in just 7 years.
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