- Gidget is the name of the Taco Bell dog

 - Ever notice that cats' eyes appear to glow in the dark? That's because a reflective layer, the tapetum licidium, possesses crystal-like reflective properties.

 - Certain frogs can be frozen solid then thawed and continue living

 - Chocolate contains a substance known as theobromine (similar to caffeine) which can kill dogs or at the very least make them violently ill

 - White cats with blue eyes are usually deaf.