Fragile Frontiers in the Abyss

The Silent Deep . The Discovery, Ecology, and Conservation of the Deep Sea. By Tony Koslow . University of Chicago Press, Chicago, 2007. 292 pp. $35, £22.50. ISBN 9780226451251. University of New South Wales Press, Sydney, Australia. Aus $49.95. ISBN 9780868404158. Koslow describes how and what we have learned of abyssal organisms and ecologies as well as the threats human activities pose to this ecosystem.