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