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Studies of animal sexual behavior have revealed that same-sex coupling is fairly widespread across all animal groups, from insects to reptiles to primates. Bagemihl's work brings together discoveries on bisexual and homosexual behavior patterns across more than species, ultimately arguing that such variations in sexual behavior demonstrate that sexuality is far more fluid and multifaceted than scientists once believed. The following animals display a wide variety of sexual behaviors, ranging from mating with partners of both genders to monogamous same-sex partnership.

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Dolphins were once humorously alluded to as "gay sharks" on an episode of "Glee," but a new study suggests that bisexuality and even homosexuality among the marine mammals may be very much a reality. As Discovery News is reportingresearch scientists at the University of Massachusetts studied more than bottlenose dolphins in western Australia, concluding that the males were "found to engage in extensive bisexuality, combined with periods of exclusive homosexuality. Still, from the sounds of it, life for a "gay" or "straight" male dolphin isn't all fun and games.

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Bisexualityin biology, the condition of an organism capable of producing both male and female gametes sex cells. In plants and microorganisms, this is often referred to as monoecism. In multicellular animals, bisexuality is usually called hermaphroditism q.

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Republish our articles for free, online or in print, under Creative Commons licence. And you may be surprised to hear that it is possible — just not for humans, or any other mammals. Experiments with mice and other mammals show an egg must be fertilised with a sperm to kick off development of any kind. It seems you need particular proteins from sperm to set up waves of calcium ions in the egg, which trigger further changes leading up to copying all the DNA and chromosomes, and dividing into two cells.

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All rights reserved. Porter, who first hit it big in the s, wouldn't risk parading his homosexuality in public. In his day "the birds and the bees" generally meant only one thing—sex between a male and female.

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For these mammals, there is documented evidence of homosexual behavior of one or more of the following kinds: sexual behaviorcourtshipaffectionpair bondingor parenting. Bruce Bagemihl writes that the presence of same-sex sexual behavior was not officially observed on a large scale until the s due to possible observer bias caused by social attitudes towards LGBT people, which made homosexuality in animals a taboo subject. They must realise that animals can have sex with who they will, when they will and without consideration to a researcher's ethical principles ".

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Imperial researchers are using a new approach to understand why same-sex behaviour is so common across the animal kingdom. Ina team of scientists set off on the Terra Nova Expedition to explore Antarctica. He chronicled the animals' daily activities in great detail.

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Same sex mating behaviour amongst male insects is much more likely to be due to incompetence, than sexual preference, male-male competition or evolutionary motivation -- according to new research from the University of East Anglia. This type of behaviour is well-recognised, but paradoxical in the animal world. It carries all the costs of time and energy, as well as risking disease or injury, but offers no benefits towards the main function of mating -fertilisation and the propagation of genes. Despite this, more than species of insects engage in same-sex mating behaviour, and in some species the same-sex mating is more common than heterosexual mating.

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We use cookies to improve our service for you. You can find more information in our data protection declaration. Same-sex pairing is not just normal in the animal kingdom - it's even common.

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Homosexual behavior in animals is sexual behavior among non-human species that is interpreted as homosexual or bisexual. This may include same-sex sexual activitycourtshipaffectionpair bondingand parenting among same-sex animal pairs. The sexual behavior of non-human animals takes many different forms, even within the same species, though homosexual behavior is best known from social species.

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