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