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