Page 86 - The Miracle in the Mosquito
P. 86

THE MIRACLE IN THE MOSQUITO



                 is to be found in the roots of plants and cut into the roots to get at
                 this oxygen.
                     ◆ The larvae have specially designed brushes around the
                 mouth, which enable them to feed by creating a current in the wa-
                 ter and filtering it.
                     ◆ The larvae make themselves an appropriate home and are
                 provided with everything they require to do so.

                     ◆ Larvae living in flowing water have hooks on their tails so
                 that they can hang on to something and avoid being swept away
                 by the current.
                     ◆ The larvae that hang head down in the water have an air
                 tube resembling a diver’s snorkel that enables them to take in air
                 from above the water level.
                     ◆ Inside the tube there is a special isolation material that
                 keeps water out.
                     ◆ The larvae, which are exposed to the sun all day and have
                 a transparent skin, have a protective shield of uric acid to stop
                 them shrivelling up in the sun.
                     ◆ In the transition to the pupal stage, the larvae have a spe-
                 cial organ for splitting their skin, which they lose at a later stage.
                     ◆ In the final metamorphosis of the pupa, the skin splits from
                 the head at the surface of the water. (If it were to split from any
                 other point, the interior of the cocoon would get wet.)
                     ◆ The head section of the cocoon is also insulated with a spe-
                 cial material.

                     ◆ The mosquito emerges from the pupa submerged in water
                 without its body or wings coming into contact with the water.
                     ◆ From being a creature living in water, it emerges as a per-
                 fect flying machine.
                     ◆ The male mosquito is able to recognise the female by the
                 frequency at which her wings beat.





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