When thirsty, squirrels will often drink from wet leaves during rain.
Squirrels have a social hierarchy determined by physical stature.
When feeding, you can often see this occur as two squirrels size each other up to determine who gets the peanut. Fortunately, this rarely leads to actual fighting. More dominant squirrels will also frequently chase off other squirrels when eating. An adult Eastern Grey Squirrel can measure between 15 to 18 inches in length. Half of that is its bushy tail.