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Gay penguin & # 39; power couple & # 39; takes the second egg after hatching their first chick last year

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Homosexuality in nature seems counterintuitive, but is observed in a number of species around the world.

There is not yet an accepted explanation based on neurological, chemical or behavioral factors to explain why some animals are homosexual and some or heterosexual.

Some scientists say that this may be due to exposure to testosterone levels in the womb, although this is still a much-discussed topic that still needs to be proven.

In a book entitled: & # 39; Homosexual behavior in animals: an evolutionary perspective & # 39 ;, writes the author, UCL professor Dr. Volker Sommer,: & # 39; Within a select number of species, homosexual activity is widespread and takes place at levels that approach heterosexual or sometimes even surpass efficacy. & # 39;

Homosexual behavior has been observed in many animals, including: macaques, dwarf chimpanzees, dolphins, orcas and humans.

Some studies claim that homosexuality is common in up to 95 percent of all animal species.

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There are two main trends when it comes to the prevalence of homosexuality in nature.

One theory states that homosexuality in animals needs no explanation, with animals being just as natural as heterosexual.

It seems irrational to survive as a trait because it hinders the ability to reproduce directly, but many speculate that it allows individuals to ensure that their genetic material is passed on indirectly through the generations because they are able to care for members of their family with descendants.

For example helping the descendants of a sister.

Similar behaviors have been observed in different species that are dedicated to the & # 39; greater good & # 39; from a large group.

For example, in family wolf packs, only one pair of animals breeds – the alpha and the beta. The other animals are responsible for the protection, feeding and care of the litter.

This allows their genetic material to indirectly pass on to the next generation through their sister, brother, mother, etc. Or whatever the relationship is.

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However, the same school applies to animals that have passed their reproductive age.

For example, female elephants who are now too old to have offspring.

They still play a crucial role in the protection of youth and the matriarch leads the group to places of food, water and hunting for potential predators.

These actions ensure the survival of the young and vulnerable members of her family and, once again, help to ensure that her genetic material is passed on indirectly by the generations.

A similar concept can be applied to homosexuality, some experts claim.

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Without the ability to reproduce directly, they are able to consume energy by taking care of the descendants of their family members.

Another theory states that homosexual behavior helps successfully pass on genes in the long term as young animals practice & # 39; mating techniques & # 39; and ways to attract a member of the opposite sex.

The rates of homosexuality for different species remain unknown, because current research finds more nuances for homosexuality in nature.

It is still found in more species, but the level of homosexuality in individual species has not been studied well enough to determine whether homosexuality is becoming more common.

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