Jerboas, tiny desert rodents that move like kangaroos, are notoriously hard to film. BBC Earth was able to film a jerboa's escape from a fox, and its unique shape has now inspired a robot:
https://www.youtube.com/watch?v=wvYthkpRFfk
Jerboas use their long tails to transfer energy to their legs, allowing them to hop many times their body length. It turns out the hair on the bottoms of their their feet also serves a number of purposes, including insulation, traction, and stealth on the sand.
