Beasts of the earth: animals, humans, and disease

The smallest passengers on Noah's ark

Heirloom infections: microbes before the advent of humans

Humans as hunters: animal origins of bioterrorism

Humans as farmers: microbes move into the home

Humans as villagers: microbes in the promised land

Humans as traders: microbes get passports

Humans as pet-keepers: microbes move into the bedroom

Humans as diners: mad cows and sane chickens

Microbes from the modern food chain: lessons from SARS, influenza, and bird flu

The coming plagues: lessons from AIDS, West Nile virus, and Lyme disease

A four-footed viewof history.