Are red dogs that you use to see after the rain extinct?

Red dogs, also known as red rain dogs, do not exist and have never been scientifically documented. The phenomenon of "red rain" has been observed and researched over the centuries, and different studies have found the origin of red rain drops to be associated with airborne red-colored microorganisms, dust, sand, algae, spores, pollen, or particles resulting from industrial emissions combined with natural elements.