The reason that mosquito bites cause a reaction is due to the enzymes in their saliva. Discover why a mosquito bite only lasts for a brief moment with help from a teacher in this free video on mosquitoes and insects.
I love being outside. It is one of my favorite ways to spend my time. I've been living here in sunny Florida for about five years and I love to go to the beach and I love to canoe and kayak in the back waters but one of the few things I don't like about being outside is mosquitoes. I'm Janice Creneti. I have been teaching animal and environmental science for about 20 years and I'm here to talk to you today about how long does a mosquito bite actually last? Well there is really two parts to the bite. See what you need to understand is that mosquitoes are a parasitic insect and the females actually are the only ones that bite and they drink blood. Well in order for an animal to be able to drink blood it has to have a mouth piece that is suited to sticking into the skin to actually get the blood and then has to keep the blood flowing. Animal bodies are bodies, the bodies of dogs, cats, and rabbits are designed when the skin is pierced to start clotting blood. Well the mosquitoes actually have enzymes in their saliva that prevent the clotting so that they can continue to get that lovely liquid into their bodies. That is actually the reason that you get a reaction. That is actually what causes the bite is the enzymes in the mosquito's saliva. The actual bite itself only lasts for a few seconds or until you figure out it is biting you and swat it. For the most part the mosquito flies in, gets its blood and leaves. It is the after effects that stick around and bug you for a while. There is lots of repellents that you can use, mosquito netting. I have just learned to wrap myself pretty much in fabric head to toe when I go outside during the Summer, but still they won't keep me away from being outside. I'm Janice Creneti and this is how long do mosquito bites last?