In terms of their mating system, humans are not really so different from socially monogamous birds and other mammals.
Female chimpanzees are very promiscuous, so the male chimpanzee has testicles ten times the size of those of gorillas, who largely enjoy monogamous relationships with their partners.
Apparently that monogamous mammalian instinct is weak.
They wanted to find out whether polygynous males had lower survival rates and aged faster than those of monogamous species.
The prairie vole is a sociable creature, one of the only 3% of mammal species that appear to form monogamous relationships.
Unlike most other fish, they are monogamous and mate for life.
I think life would be good as a monogamous albatross, partly because I find human courtship senseless.
This is because, for a woman, marriage is a declaration to the world that a man regards her as' special 'and intends to have a monogamous relation - ship with her.
Researchers have discovered that women - unlike many men - instinctively prefer a monogamous relationship, mainly because they need help bringing up any resultant children.
Oxytocin was found to affect the pleasure systems of the brain mainly in the monogamous voles.
What makes it unusual among mammals is that it is both sociable and monogamous.
The data is clear that long-term, monogamous, loving relationships between parents are very good for children.
Obviously, whether or not you’re in a monogamous relationship will go a long way toward determining how acceptable it is to be turned on by someone other than your partner.
Scientists found that the montane vole had a short version of the vasopressin receptor gene, and the monogamous one had a long version of it.
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