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