In Pictures: Beastly robotic animals

What a zoo! These mechanical creatures run, crawl, swim and fly not much unlike the real things

Robofish swims and swims and swims

Michigan State University’s Xiaobo Tan, an associate professor of electrical and computer engineering, and his team have upgraded his robotic fish so that it can glide through water almost indefinitely all the while collecting data that can help lakes and rivers cleaner. No tail flapping by this fish – called Gliding Robot ACE -- means it is slow, but doesn’t wear down batteries.

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