(M18P04) Strange hybrid animals

Animals occasionally mate with members of another species, and nature occasionally endorses it.
 
For instance, Coywolf, Liger, Pizzly Bear, Wolphin, Beefalo, Zorse, Wolfdog, and Zonkey are a few of the famous ones. 
 
Today, I learned there is something called "geep," a goat-sheep hybrid.
 
What are the ones that you heard of?