WILD FACT of the week
Animals see with two kinds of cells on their retina, both named according to shape. “ Rods” are sensitive and work well in low light but only detect general shapes in black, white, and gray. “ Cones” require more light to function but distinguish details in color. Birds of prey that are active during the day have densely- packed cone cells, allowing them to see details from a distance. Most nocturnal animals have few or no cone cells but lots of rods. This abundance of light- catching cells plus a reflecting layer of tissue (the tapetum lucidum) allows owls, coyotes, and bobcats to see well at night.