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