How fleas work.
Posted in Health, Insects, Mammals, Professional, Tips/Info on August 24th, 2007 by hessoImagine returning to your home after a long vacation. You pick up your pets from the kennel, unload your luggage and head to bed to recover from the long drive. But your sleep is anything but restful. All night, you’re plagued by tiny pinpricks and incessant itching. It doesn’t take you long to figure out that you’re being attacked by a seemingly infinite mob of hungry fleas.
An Adult Flea
Photo courtesy CDC/Vector Ecology & Control Laboratory, Fort Collins, Colo.
What happened? Did your pets pick up an infestation at the kennel? Did the vampire-like insects hitch a ride on your luggage? Or did a swarm of them decide to move in while you were gone?
It’s a creepy idea, but the most likely answer is that the fleas were waiting for you. Fleas are parasites—or life forms that feed on hosts—often harming the host in some way. Fleas use their hosts’ blood as food. They generally prefer the blood of four-legged animals to human blood, so before you went on vacation, the fleas fed on your pets, not on you.
Although newly emerged fleas need to find food within a few days, adults can go for a couple of months without a meal. Flea pupae can also stay in their cocoons for up to a year, waiting to sense the body heat and vibrations that signal the presence of nearby hosts. So when you go on vacation, the fleas don’t starve to death — they simply wait for you and your pets to come back. Read the rest of this entry »













Maureen Adams
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