(Brief Rules): No god modding
 That's it that's all! 

(Character rules) Let's try not to go crazy and make realistic animals, but have fun with it. Mutations can be useful for the character: Stronger jaws, larger claws, basically, the radioactive waste and evolved nature of the animals makes them have a few 'better' abilities then normal animals, as well as them being later than normal.
However, if you're choosing a large animal already, it won't be much bigger than it already is.
Colors, shapes of eyes and body parts, are subject to change if wanted.
Wings, poison, etc, go crazy.
Three 'special mutations/evolution' abilities tops.

Character sheet:
Name:
Age:(animal years/mental years. Ex. 5/20 five years old, acts like a twenty year old)
Gender:
Species: (wolf, dog, pig, eagle, horse, etc)
Abilities: 3 tops (enhanced speed, psychic, eyesight, sharper claws, poisonous claws, harder bite)
Mutations: 3 tops( extra eyes, wings, colors, etc)
Look description/pictures: 
Personality:
Other:(extra, add ons, side info)

My character: 
Name: Blue
Age: 5/20
Gender: Female
Species: Wolf
Abilities: Poisonous claws, can sense emotions of others, harder bites(can open mouth wider to use for destroying walls, and biting through things)
Mutations: Two bright, white, feathered wings, light radioactive blue fur, harder skin(deters weather and light attacks)
Look description/pictures: Light blue fur is extended throughout her entire body, except for the top of her tail, and her belly, legs, paws, chest and neck. She has a pair of light white wings, and and piercing blue eyes.
She often has a suspicious, cautious, or secure look about her, she's always on her guard.
Personality: Blue is a very cautious, careful creature, but she isn't afraid to leap into action when in danger. She can be surprising though, she has a bit of a wild side under her careful exterior, and craves for company and likes to go hunting for trouble. She has a very fun attitude when comfortable with others. She can be pretty defensive as well, and protective. 
Other: Naaaada!