Study shows cuckoos evolve to look like their hosts—and form new species in the process

The theory of coevolution says that when closely interacting species drive evolutionary changes in each other this can lead to speciation—the evolution of new species. But until now, real-world evidence for this has been scarce. The theory of coevolution says that when closely interacting species drive evolutionary changes in each other this can lead to speciation—the evolution of new species. But until now, real-world evidence for this has been scarce. Evolution Ecology Phys.org – latest science and technology news stories