Top 10 Animal Deaths in Movies (Spoilers)

Here's a list of my favorite scenes concerning animal deaths in movies.
This list is a non-votable list and the content of the list reflects the opinion of its author.

The Top Ten

Bambi's Mom - Bambi
Mufasa - The Lion King Mufasa is a major character in Disney's 1994 animated feature film, The Lion King. He is Simba's father, Sarabi's mate, Scar's older brother, and was King of the Pride Lands until his death.
Sam - I Am Legend

The scene where Will Smith had to kill his own dog is something I never get tired of watching.

Homeless Man's Dog - American Psycho
Dog - Marley & Me
Dog - Lassie
Dog - Old Yeller
Rabbit - Fatal Attraction
Baboon - The Fly (1986)

Not technically death, but it's alive and has been turned inside out.

Artax - The Neverending Story