Technological innovations inspired by nature

Here is a link that shows how

1) Bees inspire Harvard researchers to come up with a robotic version that can be used in search and rescue operations
2) Porcupine's quills that inspired that idea for less painful injections or an alternative to hypodermic needles
3) Shark suits that was inspired by animals that swim unharmed around sharks like the pilot fish, etc.
4) Armadillo that inspired electric-powered cars that fold itself that save space when parking.

Tech from Nature - source: The Sunday Times (20 October)