As you may have noticed, your dog probably treats each walk as an adventure-packed expedition through the Amazonian wilds. What’s up with the constant sniffing of every patch of sidewalk, tuft of grass, and length of stop sign? Learn more on this Moment of Science.
What’s ironic, though, is that the females are attracted to a pheromone produced by these loser males. If the pheromone is applied to a winner male, he will instantly become a loser–meaning he will be chased by males and females alike, only the females won’t want to pummel him.
The ultraviolet light is supposed to attract mosquitoes against an electrified grid, which then zaps them. Well, it’s true that plenty of mosquitoes are attracted into your backyard by the light, but once the mosquitoes catch a whiff of you, they ignore the light completely.