1.1 | Man-made Structure | Crane Boom
1.2 | Natural Structure | Tree Branch
1.3 | Analogous Funtion | Extension
2.1 | Man-made Structure | Bricks
2.2 | Natural Structure | Elodea (Aquatic Plant) Cells
2.3 | Analogous Funtion | Rigid Wall
3.1 | Man-made Structure | Colander
3.2 | Natural Structure | Zoanthid Coral
3.3 | Analogous Funtion | Filtration
4.1 | Man-made Structure | Road
4.2 | Natural Structure | River
4.3 | Analogous Funtion | Winding Path
5.1 | Man-made Structure | Rope
5.2 | Natural Structure | Capuchin Monkey Tail
5.3 | Analogous Funtion | Grip
6.1 | Man-made Structure | Hub Cap
6.2 | Natural Structure | Umbrella Plant
6.3 | Analogous Funtion | Spokes
7.1 | Man-made Structure | Mesh Strainer
7.2 | Natural Structure | Dolichopodid (Fly) Eye
7.3 | Analogous Funtion | Tesselation
8.1 | Man-made Structure | Straw
8.2 | Natural Structure | Orchid Stem
8.3 | Analogous Funtion | Water Transportation
9.1 | Man-made Structure | Bird Spikes
9.2 | Natural Structure | Squirrelfish Spines
9.3 | Analogous Funtion | Repel
10.1 | Man-made Structure | Polyurethane Foam
10.2 | Natural Structure | Hawksbill Sea Turtle Flipper
10.3 | Analogous Funtion | Reticulation
11.1 | Man-made Structure | Stained Glass
11.2 | Natural Structure | Cicada Wing
11.3 | Analogous Funtion | Mosaic
12.1 | Man-made Structure | Lamp Post
12.2 | Natural Structure | Tree Trunk
12.3 | Analogous Funtion | Elevate
13.1 | Man-made Structure | Pliers
13.2 | Natural Structure | Leaf-Cutting Ant Mandibles
13.3 | Analogous Funtion | Clamp
14.1 | Man-made Structure | Diving Fin
14.2 | Natural Structure | Leopard Frog Foot
14.3 | Analogous Funtion | Underwater Thrust
15.1 | Man-made Structure | Tee Shirt
15.2 | Natural Structure | Lionfish
15.3 | Analogous Funtion | Striping
16.1 | Man-made Structure | Binocular Lens
16.2 | Natural Structure | Human Eye
16.3 | Analogous Funtion | Sight
17.1 | Man-made Structure | Airplane Wing
17.2 | Natural Structure | Osprey Wing
17.3 | Analogous Funtion | Lift
18.1 | Man-made Structure | Mesh Net
18.2 | Natural Structure | Gorgonia Coral
18.3 | Analogous Funtion | Straining
19.1 | Man-made Structure | Table Leg
19.2 | Natural Structure | Dog Foot
19.3 | Analogous Funtion | Support
20.1 | Man-made Structure | Sailboat Rudder
20.2 | Natural Structure | Porkfish Caudal Fin
20.3 | Analogous Funtion | Steering
21.1 | Man-made Structure | Helicopter Propeller
21.2 | Natural Structure | Norway Maple Seeds
21.3 | Analogous Funtion | Thrust
22.1 | Man-made Structure | Knit Textile
22.2 | Natural Structure | Honeycomb
22.3 | Analogous Funtion | Hexagonal Efficiency
23.1 | Man-made Structure | Scrub Brush
23.2 | Natural Structure | Pitch Pine Needles
23.3 | Analogous Funtion | Surface Area
24.1 | Man-made Structure | Hydraulic Press
24.2 | Natural Structure | Human Teeth
24.3 | Analogous Funtion | Smashing
25.1 | Man-made Structure | Suction Cup
25.2 | Natural Structure | Carribean Octopus Sucker
25.3 | Analogous Funtion | Suction
26.1 | Man-made Structure | Grilled Cheese Sandwich
26.2 | Natural Structure | Phospholipid Bilayer
26.3 | Analogous Funtion | Layers
27.1 | Man-made Structure | Fuzzy Blanket
27.2 | Natural Structure | Human Hair
27.3 | Analogous Funtion | Insulation
28.1 | Man-made Structure | Ceramic Bowl
28.2 | Natural Structure | Barrel Sponge
28.3 | Analogous Funtion | Contain
29.1 | Man-made Structure | Solar Panel
29.2 | Natural Structure | Fig Tree Leaf
29.3 | Analogous Funtion | Sun Absorbtion
30.1 | Man-made Structure | Printed Tee Shirt
30.2 | Natural Structure | Leopard Frog Skin
30.3 | Analogous Funtion | Camouflage
31.1 | Man-made Structure | Flashlight
31.2 | Natural Structure | The Sun
31.3 | Analogous Funtion | Light Production
32.1 | Man-made Structure | Spike Strip
32.2 | Natural Structure | Rose Bush Thorns
32.3 | Analogous Funtion | Piercing
33.1 | Man-made Structure | Hydraulic Excavator Arm
33.2 | Natural Structure | Human Bicep
33.3 | Analogous Funtion | Lifting Weight
34.1 | Man-made Structure | Chicago at Night
34.2 | Natural Structure | Stars
34.3 | Analogous Funtion | Night Lights