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Genetic incompatibility describes the process by which mating yields offspring that are nonviable, prone to disease, or genetically defective in some way. In nature, animals can ill afford to devote costly resources for little or no reward, ergo, mating strategies have evolved to allow females to choose or otherwise determine mates which are more likely to result in viable offspring.
Each individual will have similar immune systems, as immune systems are genetically based. When a species becomes endangered, the population may fall below a minimum whereby the forced interbreeding between the remaining animals will result in extinction. Natural breedings include inbreeding by necessity, and most animals only migrate when ...
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Cicada with extensive fungus on abdomen. Massospora cicadina is a fungal pathogen that infects only 13 and 17 year periodical cicadas.Infection results in a "plug" of spores that replaces the end of the cicada's abdomen while it is still alive, leading to infertility, disease transmission, and eventual death of the cicada.
Ohioans willing to drive a few hours this spring can experience a rare emergence that many entomologists have been waiting for their entire lives.
What Happens When Cicadas Emerge? For the environment, the cicada emergence is a boon. Animals that eat insects hit the jackpot, either catching and eating the live cicadas or feasting upon dead ...
Sphecius grandis, also called the western cicada killer, is a species of cicada killer wasp (Sphecius). The western species shares the same nesting biology as its fellow species, the eastern cicada killer (S. speciosus). S. grandis, like all other species of the genus Sphecius, mainly provides cicadas for its offspring.
Thanks to the synchronization of the 13- and 17-year-cycle cicadas — which only happens once in every 221 years ... hypersexual behavior as a function of the fungus — so when they do attempt ...