I definitely believe astrology applies to our animal friends. Yes the species or type of dog for example is at play too.
My aunts dog though was born under the cancer sun and she was home bound and friendly to everyone especially children.
She didn't need a leash, she just stayed in the yard. My doggy friends however, both are sisters from same litter born under the Sagittarius sun and they are very "over there" minded.
London is gone now but everything I say about Fergie London was the same. She loves to learn new things and explore different areas. She loves to cheer me up and ALWAYS ALWAYS comes to lick me when I am crying. She also comes off as a guru or wiser than me a lot of times. London isn't really gone just exploring and eating things in the other realms now still checking on me sometimes