All in Insects

The Ants, They’re Everywhere

Researchers at the Universities of Hong Kong and Würzburg, Germany have addressed a question that no one asked, “How many ants are there on Earth?” The answer: 20 quadrillion. It’s difficult to grasp the enormity of such a number. The authors of the study that painstakingly added up the ants call it “20 thousand million millions, or in numerical form, 20,000,000,000,000,000 (20 with 15 zeroes).” The researchers warn that figure is a “conservative” estimate.

The Mites Among Us

Let’s take a closer look at one of the parasites that live on our bodies. A species of microscopic mite (Demodex folliculorum) lives in the pores on our face, as well as in facial hair follicles, including the eyelashes. They are an invisible 0.3 millimeters long and are passed on to us at birth. They mate – right there on our faces – at night.