Grassland
Temperate forest
Tundra
Desert
Dry and wet
Winter and fall
Spring and summer
Winter and summer
The savanna gets a fair amount of rain, at least 20 inches a year.
Growing quickly
Developing fire-resistant cover
All of the above
Having deep roots
They avoid each other as much as possible
They all migrate in different directions
Their territories don't overlap
They eat different foods
A combination of the above defenses
They have toxic chemicals
They have thorns
Ants protect them
Bajadas
Different temperatures
Rain shadows
Midlatitudes
Antarctica
North America
Australia
Asia