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
A dairy cow can produce more milk when listening to music.
446
In order to enhance the taste, Japanese macaque wash their food in salt water before they eat. They also make snowballs for fun!
7
Nicole Kidman is scared of butterflies.
65
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23