Tubercles (bumps on the flippers of whales that allow water to flow over them quickly, with no drag
Cockroaches
Dolphin communication (whistles and clicking)
Seashells
Gecko's feet
Bomardier Beetle's repellent spray (to scare away enemies)
Kingfisher bird beak
Arrangement of leaves on plants
Toe pad's on tree frogs
Natural ecosystem
Micro Mist spray technology (that is better for the environment than regular aerosol sprays)
Self-working farm
Wind turbine bumps to reduce drag of wind
New materials for ceramics
How solar panels are arranged
Underwater communication technology
Tire treads (the pattern on a tire that keeps them from skidding)
Nose cone of Japan's 500 Series Bullet Train
Climbing pads that stick to walls
Kamigami Robots (small robots that can go into small spaces and climb over rough terrain)
