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