pollen

They are essential to ecosystems, and we use them for everything from seeds to oil to pollen to decoration.

Inhalable particulate matter, or PM10, includes such debris as dust, pollen, wildfire ash and soot.

The bees even demand, “Give us your pollen.”

The discovery was made through the DNA analysis of pollen attached to butterflies found in French Guiana in South America, that was found to have originated in Africa.

"This suggests that what we are seeing is an effect of weather on the flowering plants that bees depend on for pollen and nectar, and this in turn affects the bees."