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  1. Skin wrinkles and folds enable asymmetric stretch in the elephant trunk
  2. Eyelashes divert airflow to protect the eye
  3. Snakes mimic earthworms: propulsion using rectilinear travelling waves
  4. Splash-cup plants accelerate raindrops to disperse seeds
  5. Wet mammals shake at tuned frequencies to dry
  6. Friction enhancement in concertina locomotion of snakes