I am answering this from the U.S. perspective. I do not know how this is elsewhere. If you also like math, statistics, probability, etc., then there is a lot of work to be done in animal conservation. You would not be hands-on with animals, but, advocating for them, showing the effects that different man-made changes would have on animal populations. We have people who track proposed legislation, and react to it. Or, even organizations introducing proposed legislation. You may be able to work with them, even without a biology background. I realize that you probably want something hands-on, but this was all that comes to mind at the moment. Hopefully you get some other responses!