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