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