por Noor Saleha hace 12 años
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To breathe underwater, they carry a silvery air bubble at the tip of its abdomen. This bubble is held in place by the little "hairs" that cover its body. When the air in the bubble is used up, the insect rises to the surface and with a quick, somersaulting motion captures a new bubble.
They are predators (stalking other insects), with sucking mouthparts and often snatch bugs on the water surface, drag them under and devour them.
They have little "hairs" that cover its body to hold the air bubble for breathing.
The backswimmer's keel-shaped back and powerful legs help it swim after its prey of small aquatic animals and escape its enemies.
Water boatmen are shaped like a flat football and average in length from 1/3”-1/2” maximum. Their oar shaped legs are distinguishing because of their oaring locomotion. Boatmen carry a bubble on their belly. Their body color is a drab brownish black with subtle barring of dirty yellow, brown olive, gray-brown. The belly is a light to dark brown or dirty white to dull yellow.