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