All the Mammals in the World by David Opie

"Explore the vast world of mammals with your own prehistoric tour guide! Morgie the Morganucodon, an ancient mammal who lived over 200 million years ago, can't wait to see what mammals are like today. Together you'll journey across the planet and find out. Marvel with Morgie at how far we've come and meet an astonishing array of creatures- from tiny mice, huge blue whales, and dolphins, to groundhogs, gorillas, and even people! Best of all, discover what connects human beings to out big wild animal family, and to the planet we all share."