New research finds that sac-winged bat pups — a species of bat found in Central and South America — like to "babble" in ways that are remarkably similar to human babies.
Monkeys weren't thought to have the right sort of vocal tracts to speak. But a study finds they can make many sounds common in human speech; it's just that their brains aren't "language ready."
Scientists have found that marmosets have the capability to learn calls from their parents. Studying the small monkeys may provide insights into developmental disorders in humans, like autism.