I don't think I'm related to one person, at least not for three generations who DOESN'T like animals of some sort. My great grandma used to tell me about the dogs she had, and they had several cats when my great grandpa was alive. My grandparents on my mom's side love animals and always have. They just adopted a puppy. My grandpa was an army surgeon and while they were staying in Okinawa, (Japan) they rescued a dog named Lucy, who they took home to Iowa with them. Growing up my mom always had multiple dogs, cats, birds, and my aunt made sure there were plenty of guinea pigs.
Now all of my aunts and uncle also have multiple pets. My uncle and his wife have been on a waiting list for a Eurasier for about a year now.

On my dad's side, my grandpa retrained abused horses and my grandma used to ride before she got married. She said my grandpa made her quit riding english since he was a 'cowboy'. (What a silly thing to do!) My dad even dug up a photo of my great grandpa, apparently he kept playing truant in order to go to the barn. My grandma later managed a racehorse, she still talks about her. My dad was the true ecologist though. He spent his childhood days catching snakes and reading college level books on animals. He even took a baby crow from its nest and raised it, his Archie. While that was a dumb thing to do, he succesfully raised Archie into a healthy adult crow who was more like a free ranging partner in crime than a pet. My dad was even crazy enough to keep a constrictor in his yard and bought two dosen chickens and let them loose for the snake to hunt and eat.

Even my step-parents each had animals growing up.