Baks the blind boxer has a seeing eye goose named Buttons; a four-year-old goose who leads the pup around everywhere either by hanging onto him with her neck, or by honking to tell him which way to go.
16
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Ants tend to survive in a microwave because they find the coolest spot and wait!
17
Cats recognise the voice of their owner, but never evolved to care.
22