Animal Friend

Animal Friend is a Fallout, Fallout 3 and Fallout: New Vegas perk.

Fallout
With this Perk, animals will not attack the player, unless the animal is threatened or attacked first.

Fallout 3
With the first rank of this perk, animals simply won’t attack the player. With the second rank, these creatures will come to the player's aid in combat, but never against other animals.

This perk affects:
 * Mad brahmin
 * Mole rat
 * Vicious dog
 * Yao Guai

Additional Dialog

 * A new dialogue option becomes available when speaking to Tree Father Birch in Oasis. He will then explain to the Lone Wanderer why there are animals in Oasis, though this doesn't have any benefits other than a little backstory to Oasis.

Fallout: New Vegas
With the first rank of this perk, animals won’t attack the player. With the second rank, these creatures will come to the player's aid in combat, but not against other animals.

This perk affects:
 * Bighorner
 * Brahmin
 * Coyote
 * Dog
 * Fiend guard dog
 * Gecko (not fire gecko)
 * Giant rat
 * Mole rat
 * Legion mongrel
 * NCR guard dog
 * Nightstalker
 * Gojira

Additional Dialogue

 * In The Fort, you can bypass the fight with Antony's dogs to get back Sergeant Teddy if you have the Animal Friend perk by telling him that animals like you so the dogs won't attack. He'll remark he thought there was something wrong with his dogs as they usually have to be pulled off new visitors to the Fort and since the fight wouldn't be fun, he'll just give you the bear.
 * When you give Borous Gabe's bowl and tell him you put down Gabe, you can tell him you understand his feelings for the cyberdog.