With a duck's head and a beaver's body, the duck-billed platypus is often the butt of jokes. Yet this oddity helps us understand how creatures evolve. Join Robert and Julie as they investigate the unique anatomy of the platypus.
Learn more about advertising on the HowStuffWorks podcasts at www.howstuffworks.com/advertisers.htm
And to learn about your ad choices when listening to podcasts, visit
https://www.howstuffworks.com/privacy.htm#ad-choices
