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