As humans have cut into Brazil's forests, the toucan population has taken a dive. The trees, in turn, have changed, too: Without large-billed... Big-Mouthed Toucans Key To Forest Evolution Brazil is a ...

The toucan family includes five extant genera and over 40 different species. Some of these birds have names like aracari or toucanet, but they all sport that large, comical bill. Their size and weight ...