How Improbable Journeys Shaped the History of Life by Alan de Queiroz
By 26 million years ago, the ancestors of today’s New World monkeys had arrived in South America. How those primates reached the continent is something of a conundrum. The leading explanation has the animals floating across the Atlantic Ocean from Africa aboard a giant raft of vegetation.
The scenario may sound preposterous. But de Queiroz, an evolutionary biologist, uses fossil, genetic and geologic evidence to make a compelling case that a variety of plants and animals have dispersed on long-distance ocean voyages throughout evolutionary history.