Modern zoology affords the scientist opportunities for research and recording his findings that would have been undreamed of a generation ago. This in a sound translation from the French presents a brilliant summary of how the fishes of the deeps live and breed in their own habitats. The text is full of amazing facts, as the authors take the reader to northern waters, temperate and tropical waters and oceans depths. Some of the natural laws of survival, camouflage, defensive techniques, color, the biological facts of life, add up to a fascinating study. There are sixteen superb plates in full color and many more in half tones. A Bibliography will prove invaluable to the scholar and an index makes it a useful- as well as a beautiful addition to the science shelves.