Published Jul 27, 2026, 9:37 AM ET · Updated 4 months ago · 1 source
These insect submariners survive depths that should crush them
Science Daily
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Original Report
Lake fly larvae plunge more than 200 meters into Lake Malawi each day to hide from predators, using tiny air sacs to control their depth. A rubber-like material called resilin lets them expand or shrink the sacs by changing their pH. Their toughness challenges a popular explanation for why insects are absent from the open ocean.