Insect evolution is clodely related to the evolution of flowering plants. Furthermore, insects are valuable objects of study in … Of these insects, some (dipterans and some beetles) achieve very high wingbeat frequencies through the evolution of an "asynchronous" nervous system, in which the thorax oscillates faster than the rate of nerve impulses. Phylogenomics resolves the timing and pattern of insect evolution. How do you solve a problem like the insects? The way evolution of the insects works is amazing. Insect adaptations include feeding on flowers and related structures with some 20% of extant insects depend on flowers, nectar or pollen for their food source. Pterygota, the winged insects, are indisputably monophyletic, representing a single origin of wings and flight among insects. Science 346 (6210): 763-767. Science 346 (6210): 763-767. In other winged insects, flight muscles attach to the thorax, which make it oscillate in order to induce the wings to beat. Insects are better prepared to contend with an asteroid impact. This book chronicles, for the first time, the complete evolutionary history of insects: their living diversity, relationships, and 400 million years of fossils. The resilience of insects to major extinction events attests to the potency of low volatility, although humankind’s artificial elevation of extinction rates and concurrent depression of speciation potential through degraded habitat homogenization is a lethal concoction. EVOLUTION OF THE INSECTS Insects are the most diverse group of organisms to appear in the 3-billion-year history of life on Earth, and the most ecologically dominant animals on land. Many insects, however, are beneficial from a human viewpoint; they pollinate plants, produce useful substances, control pest insects, act as scavengers, and serve as food for other animals (see below Importance). For a while I found it hard to imagine how a bee and a flowering plant could possibly have evolved to work together the way they do, with the flower providing nectar and the bee providing transport of the pollen so the plant can be fertilized.
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