I made a life list for wild animals around 2 years ago, and one for captive animals a few months after. I document all the animals I see on Google Slides, where on each slide I put the English and scientific name, basic information, and where I saw it. I don't exclusively document a specific group of animals, and both my lists include mammals, birds, herpatiles, fish, & invertebrates, although I don't keep track of domestics. So far, I have animals from 30 different zoos and aquariums on my captive list, and animals from 6-7 U.S. states and 1 foreign country on my wild list.