Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Nicole Kidman is scared of butterflies.
65
Drivers kill more deer than hunters do.
660
Rattlesnake mating sessions have been known to last more than 22 hours.
232
Cats recognise the voice of their owner, but never evolved to care.
22
Cats and dogs can hear ultrasound.
350