The reciprocal evolutionary change in two or more species that interact closely with each other, where each species acts as a selective pressure on the other. Changes in one species drive evolutionary responses in the other.
From Latin prefix 'co-' meaning 'together' and 'evolutio' meaning 'unrolling or development'. The term was coined in 1964 by entomologists Paul Ehrlich and Peter Raven to describe the evolutionary arms race between plants and their herbivorous insects.
Try Another Word