No species better illustrates the damage done by humans to the great whales than the right whale. Considered by whalers the 'right' whale to kill, this slow, plankton-feeding giant was first hunted in European waters at least a thousand years ago. Huge numbers were slaughtered worldwide until the whaling finally stopped. This unique portrait contains a text packed with facts and field experiences, alongside rare photographs of the whales. It reveals their natural history, discusses their conservation, and informs us that time is running short to help them. Despite over seven decades of protection, most right whale populations are still showing little signs of recovery, and today they are amongst the most endangered of all mammals.