The real challenge is understanding how to fully embrace your introvertness and make the right career moves where you will feel satisfied and interested in your work.
According to several surveys, lawyers tend to be more introverted. This is because lawyers actually spend most of their time doing research, writing papers and preparing cases.
Animal care workers simply provide care for animals. That means you could be working in animal shelters, pet stores, zoos and any commercial shop that requires animal care.