All about the Largest Litter in the World! Mrs Tailless thinks looking after thirty-one babies is hard work. Mr Tailless thinks teaching is much harder. So they decide to swap jobs - to see who's right! The Animal Crackers series is back by popular demand, with an attractive and fresh new cover design. Inside, the pages have clear, easy-to-read type and fun colour illustrations throughout each book. They also include joke sections and are published in a large, child-friendly format.