Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
One in three dog owners say they have talked to their pets on the phone.
427
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79