Ep. 21 – David Barrie on the wonders of animal navigation When We Talk About Animals

Author and sailor David Barrie voyaged around the globe and through scientific literature to learn about the awe-inducing and still mysterious navigational powers of animals. Barrie writes of mysteries such as how birds employ “map and compass” type navigation, how Box jellyfish use some of their twenty-four eyes to keep track of trees and other above-water landmarks, how sweat bees can detect and find their ways home using single photons of light, and how Sahara desert ants measure their turns and count their steps in a process humans call “dead reckoning” — in addition to relying on visual landmarks, patterns of light invisible to the human eye, wind micro-vibrations, scent, optic flow, and the earth’s magnetic field. Animals’ navigational feats reveal an extraordinary awareness of the environment around them — a form of perception that is often far different from our own. In his new book, Supernavigators, Barrie describes the navigational intelligences of other species, which often exceed our wildest imaginations, and issues a call for humans, too often “blinded by vision,” to better respect and celebrate these animals’ abilities in an era when human behavior is increasingly impeding them.