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