Dining Like Darwin: When Scientists Swallow Their Subjects : The Salt : NPR

Once he embarked on The Beagle, Darwin's penchant for bold food choices continued to evolve. He ate puma ("remarkably like veal in taste"), iguanas, armadillos. He not only ate giant tortoises, but tried drinking their bladder contents: "The fluid was quite limpid, and had only a very slightly bitter taste." He ate a 20-pound rodent (usually assumed to be an agouti) that provided "the very best meat I ever tasted." He even accidentally ate part of an ostrich-like bird called a lesser rhea, after spending months trying to catch it so that he could describe the species. (Don't worry: Once he realized what they were dining on, Darwin made everyone stop eating and sent a package of leftover bones, skin and feathers back to England.)