I love this book! Highly recommended for all ages! Organized around different chunks of time (one second, one minute, one hour, one day, one week, etc. etc.) Steve Jenkins presents a collection of not-quite-random facts about plants, animals, and humans, describing things that occur within that chunk of time. For younger students, it gives some perspective to help understand our concepts of time; for older students and adults, it gives some perspective to help understand issues of population expansion and nature preservation. It’s just fascinating all around, and of course, illustrated in Jenkins’ typically delightful style.