What strong attraction causes Giant Water Bugs to shift locations near human structures after sunset?
Answer
Artificial lights
A significant shift in the location of Giant Water Bugs occurs immediately after sunset due to their strong phototaxis, meaning attraction to light sources. While they spend the day hidden beneath cover in the water, nocturnal activity involves movement toward the surface and even short flights near illuminated areas. This attraction to artificial lights often results in the bugs landing on nearby decks, screens, or other structures adjacent to the water body, increasing the chances of accidental human proximity.
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