The Dangers and Anatomy of House Flies
TLDR House flies are carriers of diseases such as typhoid fever, salmonella, leprosy, and cholera. They have an exoskeleton, compound eyes, antennae, and small wings called halters. Biological control methods can help control the fly population.
Timestamped Summary
00:00
House flies, specifically the muska domestica, are not only mundane bugs but also carriers of diseases such as typhoid fever, salmonella, leprosy, and cholera.
04:59
House flies have an exoskeleton made of chitin and three sections to their body: the head, thorax, and abdomen, with two common eyes divided into three to six thousand simple eyes that make up a grid of their physical environment and a few additional eyes that act as a compass to keep them oriented towards the sun.
09:08
House flies have antennae for their sense of smell, a probiscus for tasting and eating, maxillary palps for feeling, and a labellum at the end of their probiscus that acts like a sponge for sucking.
13:15
Flies have small wings called halters that allow them to maintain balance and move quickly in the air, and without these halters, flies cannot fly at all.
17:19
Flies spit up saliva and digestive juices onto their food, which they then slurp up, similar to how humans chew and digest food, but flies do this on the outside of their bodies; flies also have a crop where they store and process food until it is ready to be digested, and while flies can potentially carry disease, the human immune system can usually defend against it.
21:28
The average lifespan of a fly is about 21 days, with the life cycle taking about seven to 10 days to go from egg to adult, and flies go through three molting stages as maggots before entering the pupa stage.
25:22
Flies can enter a state of suspended animation called diapause if there is no food or predators around, and they can wake back up after a few months.
29:30
Biological control methods, such as Venus fly traps, spiders, and parasitic wasps, can help control the fly population, as well as keeping windows and doors shut, using fly swatters or flypaper, and bug zappers, although pesticides are not recommended for house flies.
33:20
The hosts of the podcast have a humorous exchange with John Hodgman about a correction they need to make regarding the location of the five colleges mentioned in the Scooby-Doo show.
37:39
The hosts provide contact information for listeners to reach out to them and discuss the episode further.
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Society & Culture