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