#14: Zebras and Ostriches
On African savannas, zebras and ostriches are sometimes found feeding in mixed groups, where their very different sensory strengths can provide complementary protection against predators. Zebras possess excellent hearing and a strong sense of smell, while ostriches have exceptional eyesight and the height necessary to scan across open grassland. By remaining near one another, both species potentially increase the range of warning information available when lions, hyenas, or other threats approach. An ostrich can spot suspicious movement at considerable distance, while a zebra may detect sounds or scents that the bird misses. Neither animal depends exclusively on the other, and this is better understood as a flexible association than a permanent partnership between designated individuals. Nevertheless, mixed-species groups are common throughout nature precisely because additional eyes, ears, and noses can improve predator detection.
