Nature & Environment
Studying mammals: The social climbers
...think biologists use to describe the visual system in Old World monkeys, apes and humans? Answer Trichromatic, because it involves three light-detecting pigments. Trichromatic vision evolved convergently in only two genera of New World monkeys: howler monkeys and spider monkeys. As discussed in LoM pp. 248 and 255, any ancestral monkeys that were able to detect ripe fruit...