The robot from Florida-based Team IHMC Robotics takes a tumble as it tries to walk over rubble. This team came in second place and won a $1 million prize. DARPA Robotics Challenge hide caption

itoggle caption DARPA Robotics Challenge

The German service robot Toomas was designed to welcome customers and help them find items in a store. Joerg Sarbach/AP hide caption

itoggle caption Joerg Sarbach/AP

Shoppers view and take photographs of humanoid robot "Chihira" at the information reception desk of Mitsukoshi department store in Tokyo. Chris McGrath/Getty Images hide caption

itoggle caption Chris McGrath/Getty Images

These robotic arms are part of a modular kitchen that's been set up so that the robot chef can find exactly what it needs. Moley Robotics hide caption

itoggle caption Moley Robotics

DAR-1 is one of the many social robots with facial recognition abilities on display for the robot petting zoo at the South by Southwest interactive festival. Jack Plunkett/AP hide caption

itoggle caption Jack Plunkett/AP

Kiva robots maneuver around one of Amazon's newest distribution centers on Sunday in Tracy, Calif. Brandon Bailey/AP hide caption

itoggle caption Brandon Bailey/AP

Since it was built by the Texas A&M Engineering Extension Service in 1998, 90,000 emergency responders have come to "Disaster City" to climb over mangled steel and through derailed chemical trains. Lauren Silverman /KERA hide caption

itoggle caption Lauren Silverman /KERA

One of these penguins is not like the others — the chick in front is really a rover, designed by filmmakers and used by scientists to gather data. Huddle/John Downer Productions/BBC hide caption

itoggle caption Huddle/John Downer Productions/BBC

These little robots, called BlabDroids, ask people questions and video record their replies. The footage will be used to create a documentary. Courtesy of Alexander Reben hide caption

itoggle caption Courtesy of Alexander Reben

A BigDog robot at Boston Dynamics in 2010. The BigDog is being developed to help soldiers carry heavy equipment in the field. It can follow a human being, walking across wet/sandy/rocky terrain, just like a dog would. Suzanne Kreiter/Boston Globe via Getty Images hide caption

itoggle caption Suzanne Kreiter/Boston Globe via Getty Images

Rowbot is designed to fit in between the rows of crops. Moving up and down each row, a fleet of 20 bots could fertilize and monitor the corn crops during the growing season. Courtesy of Kent Cavender-Bares hide caption

itoggle caption Courtesy of Kent Cavender-Bares

Humans and chimpanzees — like this individual at a zoo in Australia — are animals who have evolved to forge extensive and elaborate social connections. Lisa Maree Williams/Getty Images hide caption

itoggle caption Lisa Maree Williams/Getty Images

Oceans, and the innards of Earth itself, are the final frontiers of our planet. Expect amazing discoveries as explorers document more and more of this unseen realm. Hulton Archive/Getty Images hide caption

itoggle caption Hulton Archive/Getty Images