Episode Overview
Researchers theorize that birds originated from reptiles. While birds possess backbones and reproduce by laying eggs, they have a distinctive characteristic that distinguishes them from all other creatures: feathers. These feathers are composed of keratin, the same protein found in human hair and nails. The combination of feathers, lightweight skeletal structures, robust wings, and strong cardiovascular systems enables birds to soar through the skies.
Show Information
Season 3 Episodes 33
1.
Planets & Moons
1.
Pre-Inked Stamps, Cranberries, Cotton Yarn, Road Signs
2.
Pressure
2.
Combination Locks, Pottery, Recreational Vehicles, Erasers
3.
Plants
3.
Wheel Loaders, Vegetable Oil, Hand Tools, Cotton Swabs
4.
Rocks & Soil
4.
Temporary Metal Fences, Asphalt Shingles, Expanded Polystyrene Products, Hard Candies
5.
Energy
5.
Horse-drawn Carriages, Artificial Eyes, Dog and Cat Food, Mirrors
6.
Evolution
6.
Yogurt, Candles, Neon Signs, Bookbindings
7.
Water Cycle
7.
Prepared Mustard, Violins, Nuts and Bolts, Toilet Paper
8.
Fresh Cut Flowers, Adhesive Tape, Tofu, Lottery Tickets
8.
Friction
9.
Inflatable Watercraft, Couscous, Modelling Dough, Wicker Products
9.
Germs
10.
Wind Generators, PVC Gloves, Thermo-formed Glass, Fire Trucks
10.
Climates
11.
Radiators, Hatchery Chicks, Filo Pastry, Cross-Country Skis
11.
Waves
12.
Electric Baseboard Heaters, Moulded Pulp Containers, Chicken, Video Games
12.
Ocean Life
13.
Fire Fighter Boots, Garden Tools, Automated Machines, Gypsum Board
13.
Mammals
14.
Spinning Things
15.
Fish
16.
Human Transportation
17.
Wetlands
18.
Birds
19.
Populations
20.
Animal Locomotion
Servers