It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
A dairy cow can produce more milk when listening to music.
446
Unsinkable Sam (nickname of a German ship's cat) who served on 3 warships, one German, two British, all sank in action. The cat survived each sinking, floating away on wooden planks to rescue.
19
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16
The largest breed of rabbit is the Flemish Giant.
65
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23