Some examples in history
biomimetics/Biomimicry

Flight: inspired by studying birds.

Velcro: a burdock burr inspired the world's most useful fastener.

Needles: a mosquito's nearly painless bite inspired better needles.

Reflectors: A cat's eyes inspired reflective road studs and saved 1000s of lives.

Drones: drone design inspired by dragonflies.

Clothing: Pine cones open when dry and close when damp, inspiring fabrics whose vents open as you sweat.