Bøger i X-Books: Ice Age Creatures serien

"A countdown of five of the most captivating saber-toothed cat fossil discoveries and relatives provides thrills as readers discover more about the biological, social, and hunting characteristics of these Ice Age predators"--

"A countdown of five of the most captivating giant beaver fossil discoveries and relatives provides thrills as readers discover more about the biological, social, and hunting characteristics of these Ice Age creatures"--

"A countdown of five of the most captivating dire wolf fossil discoveries and relatives provides thrills as readers discover more about the biological, social, and hunting characteristics of these Ice Age predators"--

"A countdown of five of the most captivating mammoth fossil discoveries and relatives provides thrills as readers discover more about the biological, social, and hunting characteristics of these Ice Age creatures"--