Anything that lives in or which is carried by the wind, breeze, etc.

• There are many air borne aerocolas; such as, pollen that may cause hay fever or other respiratory illnesses among animals.
• Feathered birds and insects of the air are distributed over the aerocolas of the earth and are inhabiting almost every possible area other than the deep oceans.
• Birds have special places in aerocolas, ranging in size from very tiny hummingbirds, that weigh just a few grams, to eagles.
• The numbers of insects that exist in aerocolas is impossible to determine because there are so many different species.