This volume introduces creatures that are said to be extinct, but whose sightings continue to be reported; tragic creatures who were driven to extinction by humans in a matter of decades such as the dodo and the Steller's sea cow; phantom creatures such as the Andean wolf, whose pelts have been found but who have never been seen alive. It discusses their odds of having survived and the cause of their extinction from a scientific standpoint. Finally, this landmark picture book scientifically establishes the true identity of legendary creatures like the tsuchinoko, the Loch Ness monster and the yeti.