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Sexual cannibalism is when an animal, usually the female, cannibalizes its mate prior to, during, or after copulation. [1] It is a trait observed in many arachnid orders, several insect and crustacean clades, [2] gastropods, and some snake species. Several hypotheses to explain this seemingly paradoxical behavior have been proposed.
Cockroaches are generalized insects with few special adaptations, and may be among the most primitive living Neopteran insects. They have a relatively small head and a broad, flattened body, and most species are reddish-brown to dark brown. They have large compound eyes, two ocelli, and long, flexible antennae.
The American cockroach (Periplaneta americana) is the largest species of common cockroach, and often considered a pest. In certain regions of the U.S. it is colloquially known as the waterbug, [1] though it is not a true waterbug since it is not aquatic. It is also known as the ship cockroach, kakerlac, and Bombay canary. [2]
A sexually transmitted infection (STI), also referred to as a sexually transmitted disease (STD) and the older term venereal disease (VD), is an infection that is spread by sexual activity, especially vaginal intercourse, anal sex, oral sex, or sometimes manual sex. [1][5][6] STIs often do not initially cause symptoms, [1] which results in a ...
Bed bugs are parasitic insects from the genus Cimex, who are micropredators that feed on blood, usually at night. [ 7 ] Their bites can result in a number of health impacts, including skin rashes, psychological effects, and allergic symptoms. [ 5 ] Bed bug bites may lead to skin changes ranging from small areas of redness to prominent blisters ...
The German cockroach (Blattella germanica), colloquially known as the croton bug, is a species of small cockroach, typically about 1.1 to 1.6 cm (0.43 to 0.63 in) [ 1 ][ 2 ] long. In color it varies from tan to almost black, and it has two dark, roughly parallel, streaks on the pronotum running anteroposteriorly from behind the head to the base ...
The Madagascar hissing cockroach (Gromphadorhina portentosa), also known as the hissing cockroach or simply hisser, is one of the largest species of cockroach, reaching 5 to 7.5 centimetres (2 to 3 inches) at maturity. They are native to the island of Madagascar, which is off the African mainland, where they are commonly found in rotting logs.
In the Canadian Youth, Sexual Health and HIV/AIDS Survey created by Boyce and colleagues, [6] it was found that among students in grades 9 and 11 between 2002 and 2003, 84% to 90% of males and females who had ever had intercourse reported being protected from pregnancy by using a combined oral contraceptive pill, a condom or both the last time they engaged in sexual intercourse. [6]