Out of Siberia, across the narrow Bering Strait, from Alaska down into central North America, following ever widening pockets in the glaciers, came North America’s largest big-game mammal – the moose. The majestic moose is as much a part of the Canadian heritage as the dark spruce forests of the north. The native Indians lived on his flex and wore his skin on their backs; explorers returned home to spread extravagant legends about the great ‘Monster of superfluity’; sportsmen still praise him above all other beasts of the chase. First published in 1955, this is still the most comprehensive work available on the moose. It brings together a detailed review of published literature and results of Dr Peterson’s personal studies in the field and in the laboratory. It has played a part in preventing the possible extinction of this valuable animal and it continues to provide the basis for a sound management programme for its continued conservation.