Careers working with animals for an introvert?

biologists usually cut up animals instead of studying them alive. you might want to try something in ecology or zoology or even environmental studies, maybe try to get a job in a zoo not as a...guide but as a care taker of animals and then go from there or you can look into programs where you get to go out of the country and raise large animals. though with a phd in physics...i dont think biology will be your interest for long. just do something in physics, since hardly anyone can do physics you will likely end up working with a few people not a lot and keep a dog or cat or turtles as pets :)