Consider this: Without interaction between animals and flowering plants, the seeds and fruits that make up nearly eighty percent of the human diet would not exist.

In The Forgotten Pollinators, Stephen L. Buchmann, one of the world's leading authorities on bees and pollination, and Gary Paul Nabhan, award-winning writer and renowned crop ecologist, explore the vital but little-appreciated relationship between plants and the animals they depend on for reproduction -- bees, beetles, butterflies, hummingbirds, moths, bats, and countless other animals, some widely recognized and other almost unknown.

Scenes from around the globe -- examining island flora and fauna on the Galapagos, counting bees in the Panamanian rain forest, witnessing an ancient honey-hunting ritual in Malaysia -- bring to life the hidden relationships between plants and animals, and demonstrate the ways in which human society affects and is affected by those relationships. Buchmann and Nabhan combine vignettes from the field with expository discussions of ecology, botany, and crop science to present a lively and fascinating account of the ecological and cultural context of plant-pollinator relationships.

More than any other natural process, plant-pollinator relationships offer vivid examples of the connections between endangered species and threatened habitats. The authors explain how human-induced changes in pollinator populations -- caused by overuse of chemical pesticides, unbridled development, and conversion of natural areas into monocultural cropland-can have a ripple effect on disparate species, ultimately leading to a "cascade of linked extinctions."

Plants produce a considerable number of structures of one kind, like leaves, flowers, fruits, and seeds, and this reiteration is a quintessential feature of the body plan of higher plants. But since not all structures of the same kind produced by a plant are identical—for instance, different branches on a plant may be male or female, leaf sizes in the sun differ from those in the shade, and fruit sizes can vary depending on patterns of physiological allocation among branches—a single plant genotype generally produces a multiplicity of phenotypic versions of the same organ.

Multiplicity in Unity uses this subindividual variation to deepen our understanding of the ecological and evolutionary factors involved in plant-animal interactions. On one hand, phenotypic variation at the subindividual scale has diverse ecological implications for animals that eat plants. On the other hand, by choosing which plants to consume, these animals may constrain or modify plant ontogenetic patterns, developmental stability, and the extent to which feasible phenotypic variants are expressed by individuals.

An innovative study of the ecology, morphology, and evolution of modular organisms, Multiplicity in Unity addresses a topic central to our understanding of the diversity of life and the ways in which organisms have coevolved to cope with variable environments.

Vampire bats that regurgitate blood for roosting buddies. Mosquitoes that filch honeydew droplets from ants. Reptiles that enforce chastity on their lovers with copulatory plugs. Capuchin monkeys that use millipede secretions as mosquito repellent. The natural world is full of unusual relationships, and negotiation between life-forms striving to survive is evolution at its most diverse, entertaining, and awe-inspiring. 

Picking up where her highly popular Headless Males Make Great Lovers left off, tropical field biologist Marty Crump takes us on another voyage of discovery into the world of unusual natural histories, this time focusing on extraordinary interactions involving animals, plants, fungi, and bacteria. Sexy Orchids Make Lousy Lovers& Other Unusual Relationships illuminates the ceaseless give-and-take between species. Occasionally, both interacting parties benefit, like when hornbills and dwarf mongooses hunt together for food. Other times, like when mites ride in hummingbirds’ nostrils to reach their next meal of nectar, one individual benefits and the other is neither helped nor harmed. But sometimes one individual benefits at the expense of the other; you need only recall your last sinus infection to understand how that works.

Throughout, Crump brings her trademark spunk and zest to these stories of intimate exchange. She introduces readers to penguins that babysit, pseudoscorpions that ride and mate under the wings of giant harlequin beetles, and parasitic fungi that bend insects to their will. A lively companion to Crump’s earlier work, Sexy Orchids Make Lousy Lovers& Other Unusual Relationships captures the bizarre and befuddling aspects of the behavior of animals, plants, and microbes. After this entertaining romp through the world of natural relationships, you’ll never look at an orchid the same way again.