Possible chapter header ideas?

Brainstorming some Florida critters for chapter header images. Some other options are manatee, dolphin, iguana, armadillo, coquina...? Only have ~16 chapters though and I'd like to be thoughtful about which critter should be paired with each chapter (either it's directly found in the chapter or the critter mirrors some of the emotion/action). Also, lubbers and scorpions ew.