Watch Nova season 0 episode 17 online for free. What is it like to be a dog, a shark, or a bird? Long the subject of human daydreams, this question is now getting serious attention from scientists who study animal senses. The senses define our experience of the worldâ€”they shape our minds, and help make us what we are. Humans rely on smell, sight, taste, touch, and sound, but other animals have super-powered versions of these senses, and a few, like electrically-sensitive sharks, even have extra senses we donâ€™t have at all. From a dog who seems to use smell to tell time, to a dolphin who can “see” with his ears, we will discover how animals use their senses in ways we humans can barely imagine. But itâ€™s not just the senses that are remarkableâ€”it’s the brains that process them. How does a swallowâ€™s tiny, one-gram brain take in the flood of visual information that enables the bird to whiz within inches of buildings while flying at 40 miles per hour? How does a dogâ€™s mind turn the sight of a hand signal into the happy anticipation of a treat? How has the evolution of the dogâ€”from its wolf ancestorsâ€“reshaped its brain? NOVA goes into the minds of animals to â€œseeâ€ the world in an entirely new way.