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