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