Ohio is celebrating its 212th birthday with special events at the Ohio Statehouse in Columbus.
Neil Conan, host of NPRâ€™s â€œTalk of the Nationâ€, moderates a discussion on where our religious beliefs come from and if religious beliefs have served an evolutionary purpose.
The effects of fire, climate change, and logging.
Examining the skeleton of the (extinct) giant ground sloths, which is related to the modern tree sloth. Examining the skeleton of mammoths, mastodons, and elephants.