Years ago, actually decades ago, my ornithology professor (and dear, dear friend), Dr. Oscar "Bud" Owre, recommended a book by Gerald Durrell. As I recall the title was My Family and Other Animals, but since I read everything he wrote, I'm not sure it was the first.
Durrell started one of the first captive breeding programs for endangered animals nearly a half century before the rest of the world caught on to the idea--or even the need. His sanctuary is on the Isle of Jersey. His books were about capturing the animals he was trying to save from extinction. The animals are anthropomorphized in his books, but he had a Dave Barry kind of eye for the details of their behavior, and his own. I've never laughed so hard in my life. One of his book, The Aye Aye and I, was about capturing the endangered Aye Aye.
I also loved A Zoo in my Luggage and Two in the Bush, if you can still find them. Since I was still flying for Pan Am back then, I bought many of his books in England and New Zealand--ones I couldn't find here.
THIS IS AN ASIDE.