Summer is the season for flies, which belong to an insect group that scientists call Diptera. Many fly species are more ...
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Insects: Facts about the creepy-crawlies that make up more than half of the world's animal species
More than half of all known animal species on Earth are insects — critters with a hard external skeleton, three pairs of jointed legs, antennae and a body divided into three segments (the head, thorax ...
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