2024-03-02 07:35:21
Introduction
Example of cannibalism behavior occasionally observed in certain larvae of the ladybug Harmonia axyridis (invasive species)
Example of cannibalism among Nematodes: Mononchidae eating another Mononchidae.
Animal cannibalism is a practice consisting of eating one or more parts of a member of the same species. Many animals practice it by necessity or by instinct.
Sexual cannibalism
- Female spiders devouring their male partners during mating, particularly the black widow (Latrodectus mactans, the North American black widow, is a species of spider…).
- The praying mantis (The praying mantis (Mantis religiosa) is a species of insect in the Mantidae family….) sometimes devours the male during mating, particularly when it is hungry.
Offspring
- In most rodents, following giving birth, the female eats the umbilical cord (In placental mammals, the umbilical cord is the organ that joins the placenta of the…) to the navel of her little one and continues to devour it if he does not react when she starts to bite him. This allows the elimination of weaklings and allows the mother to regain her strength.
- When a queen ant has been fertilized and settles down to found her own anthill, she often eats her first eggs, and sometimes even the first workers to reach maturity if they do not feed it enough.
- In the event of a shortage that can cause death from the hive, the bees are led to devour the larvae and nymphs, thus contributing to the death of the hive. to birth control.
- An example of cannibalism is the trout which devours part of the fry or even the pike.
- In the lion, when a suitor ousts the old dominant male and takes his place with the latter’s females, the new suitor eats then the offspring of the old male to be able to reproduce as quickly as possible with the females and thus ensure his own descendants.
Survival cannibalism
- Tadpole: Most tadpoles are herbivorous. However, in a few rare species, some become cannibalistic if living conditions (Life is the name given:) become very harsh.
- Coconut crabs sometimes exhibit cannibalistic behavior.
Others
- A case of cannibalism has been reported among giant squid.
- In the chimpanzee, it happens that following an attack in a territory (The notion of territory has taken on increasing importance in geography and particularly in. ..) neighbor, if they have killed other chimpanzees, they eat them. This behavior remains misunderstood, perhaps to have a protein surplus.
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