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