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