| 0:00 | Grass roots - soil organisms, decompose - prairie soil. |
1:50 | grasshoppers mating |
2:30 | fire |
| 3:30 | Thirteen-lined squirrel burrows - Pauline Drobney |
5:30 | Plants resprout |
6:00 | 65 MYA North America was forested; tectonic Sierra Nevadas/Rockies (Laramide orogeny) |
| 7:30 | 30 inches rain tallgrass |
7:37 | 18 KYA ice -> prairie earth |
9:45 | Big 4 grasses: Big & little Blue, Indian Grass, Switch Grass, Prairie Cordgrass |
| 11:00 | Tiger Salamander eats earthworm |
11:50 | Greater Prairie Chicken mating ritual |
12:30 | Prairie Vole |
| 13:00 | Dabblers |
12:30 | Prairie Vole |
14:00 | Bison 60 million |
| 15:20 | wallow |
15:50 | Grasshopper mandibles move side to side |
16:30 | Orb (Argiope) Spider eats grasshopper |
| 17:00 | Seven-spotted Lady Beetle eats aphids |
17:50 | Dragonflies |
18:10 | male Widow Skimmer |
| 19:10 | Monarch shunned by birds, each female 400 eggs |
22:45 | Dickcissel nest raided by Prairie Kingsnake |
24:45 | Ring-necked Snake victim of Loggerhead Shrike impales on locust tree |
| 25:50 | Mother shrike cleans up chick poop |
26:00 | Prairie Skink protects 21 eggs |
27:40 | Collared Lizard |
Peter Chen 2.0