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Electromyography (EMG) is a technique for evaluating and recording the electrical activity produced by skeletal muscles. [ 1 ] [ 2 ] EMG is performed using an instrument called an electromyograph to produce a record called an electromyogram .
Insects, like all arthropods, have no interior skeleton; instead, they have an exoskeleton, a hard outer layer made mostly of chitin that protects and supports the body. . The insect body is divided into three parts: the head, thorax, and abdomen
Composite patterns: aphids and newly born young in arraylike clusters on sycamore leaf, divided into polygons by veins, which are avoided by the young aphids Living things like orchids, hummingbirds, and the peacock's tail have abstract designs with a beauty of form, pattern and colour that artists struggle to match. [21]
Cydnidae are a family of pentatomoid bugs, known by common names including burrowing bugs or burrower bugs. [2] As the common name would suggest, many members of the group live a subterranean lifestyle, burrowing into soil using their head and forelegs, only emerging to mate and then laying their eggs in soil.
This glossary of entomology describes terms used in the formal study of insect species by entomologists.. When present, elytra of the Staphylinidae are markedly abbreviate. This fly in the genus Scaptomyza has clearly visible rows of para-sagittal acrostichal bristles on its thorax the alitrunk of aculeate Hymenoptera comprises the three thoracic segments, plus the propodeum, which strictly ...
Chironomidae larva, about 1 cm long, the head is right: The magnified tail details are from other images of the same animal. Chironomid "bloodworm" larva showing the characteristic red color, about 40× magnification: The head is towards the upper left, just out of view.
Spirama helicina resembling the face of a snake in a deimatic or bluffing display. Deimatic behaviour or startle display [1] means any pattern of bluffing behaviour in an animal that lacks strong defences, such as suddenly displaying conspicuous eyespots, to scare off or momentarily distract a predator, thus giving the prey animal an opportunity to escape.
In imperfect Batesian mimicry, the mimics do not exactly resemble their models. An example of this is the fly Spilomyia longicornis, which mimics vespid wasps. However, it is not a perfect mimic. Wasps have long black antennae and this fly does not. Instead, they wave their front legs above their heads to look like the antennae on the wasps. [21]