Scientists are discovering new species at the bottom of the ocean and deep in the rainforest, but there are also plenty of new animals being discovered in cities around the world!

It's no joker. People in Mexico City gathered Saturday to celebrate 'Batman Day' and to mark the 80th anniversary of the appearance of crimefighter Bruce Wayne and his masked identity.

Hank explores different ways of understanding identity – including the Indiscernibility of Identicals, and essential and accidental properties. In what ways does affect identity? In what ways does it not? What does it mean for a thing to...

On the web, a new "Friend" may be just a click away, but true connection is harder to find and express. Ze Frank presents a medley of zany Internet toys that require deep participation -- and reward it with something more nourishing....

Our next stop in our tour of the ethical lay of the land is utilitarianism. With a little help from Batman, Hank explains the principle of utility, and the difference between act and rule utilitarianism.

Daniel Kish has been blind since he was 13 months old, but has learned to "see" using a form of echolocation. He clicks his tongue and sends out flashes of sound that bounce off surfaces in the environment and return to him, helping him...

Howcast - Learn how to krump like Demolition Krew in this krumping Howcast video with choreographer Jamal Cumberbatch.

Howcast - Learn how to do a through the legs layup basketball trick from the Harlem Wizards in this Howcast basketball video.

Howcast - Check out this walkthrough for the open world brawler, Batman: Arkham City and infiltrate the Sionis Steel Mill (again).

Howcast - Check out this walkthrough for the open world brawler, Batman: Arkham City, made by Rocksteady. Defeat Clayface, stop Joker, save Arkham City, and ignore Commissioner Gordon.

Howcast - Check out this walkthrough for the open world brawler, Batman: Arkham City and break into strange's vault.

Howcast - Check out this walkthrough for the open world brawler, Batman: Arkham City, and enter Poison Ivy's lair.

Howcast - Learn how to do the bad man forward, bad man pull up in reggae dancehall from the founders of Str8FramYaad Dancehall Aerobics in this Howcast video.

Howcast - Check out this walkthrough for the open world brawler, Batman: Arkham City, and locate Ra's al Ghul.

Howcast - Check out part 15 of this walkthrough for the open world brawler, Batman: Arkham City, and find Penguin's Disruptors in the Gotham Museum.

Howcast -Learn how to paint a cheek Batman from face painting expert Emma Sadler in this Howcast video.

Howcast -Learn how to paint a Batman face from face painting expert Emma Sadler in this Howcast video.

Howcast -Learn the difference between active voice and passive voice from Gotham Writers' Workshop instructor Stephanie Paterik in this Howcast grammar video.

Howcast -Check out part 18 of this walkthrough for the open world brawler, Batman: Arkham City, and rescue Mister Freeze from Penguin in the Museum.

Howcast -Check out this walkthrough for the open world brawler, Batman: Arkham City overcome the old fake Joker gag and defeat Clayface.

Howcast -Check out part 46 of this walkthrough for the open world brawler, Batman: Arkham City and break into strange's vault.

Howcast -Check out this walkthrough for the open world brawler, Batman: Arkham City, and infiltrate the Sionis Steel Mill (again).

Howcast -Check out this walkthrough for the open world brawler, Batman: Arkham City and track down the source of the radio signal to locate Joker.

Howcast -Check out this walkthrough for the open world brawler, Batman: Arkham City, and find Penguin's Disruptors in the Gotham Museum.