第288篇How Plants and Animals Arrived in the Hawaiian Islands

第288篇How Plants and Animals Arrived in the Hawaiian Islands-kingreturn
第288篇How Plants and Animals Arrived in the Hawaiian Islands
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How Plants and Animals Arrived in the Hawaiian Islands

Scientists have attempted to explain how living things that are not native to the Hawaiian Islands were able to reach the islands from distant places. The way in which birds reached the Hawaiian Islands is obvious enough. Some of the plants that probably came with them had seeds that readily attached to feathers, about 7 percent of the Hawaiian nonendemic (nonnative) seed plants probably arrived in this way. The Hawaiian insects, too, arrived by air. Entomologists have used airplanes and ships to trail fine nets over the Pacific at different heights and have trapped a variety of insects, most of which, as would be expected, are light-bodied. These types also predominate in the Hawaiian Islands (an indication of their airborne arrival), although heavier dragonflies, sphinx moths, and butterflies are also found there.

 

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