Natural selection has designed flowers to communicate with other species, deploying an astonishing array of devices—visual, olfactory, and tactile—to get the attention of specific insects and birds and even certain mammals. In order to achieve their objectives, many flowers rely not just on simple chemical signals but on signs, sometimes even on a kind of symbolism. Some plant species go so far as to impersonate other creatures or things in order to secure pollination or, in the case of carnivorous plants, a meal. To entice flies into its inner sanctum (there to be digested by waiting
...more
