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evolutionary explanations for partner preferences - Coggle Diagram
evolutionary explanations for partner preferences
sexual selection
type of natural selection
people with certain characteristics more likely to mate
more likely to reproduce
how you make yourself look good to attract opposite sex
intersexual selection
typically females selecting mates on desirable characteristics
good traits= good genes
BUT
women take quality over quantity approach
ova is rarer than sperm
want to make sure partner is "worth it"
ensure they're genetically fit
males compete for females
partners who can provide resources
food, territory, protection
intrasexual selection
competition within the same sex
typically done by males
prefer quantity over quality
fighting, displays of strength etc
winners have more mating opportunities
some characteristics evolve
mating strategies
male
courtship rituals
show off genetic potential/ resources
size
bigger body size
physical strength
protect partner/ offspring from threats
sperm competition
evolved to have bigger testicles
faster swimming sperm
mate guarding
close eye on partners to prevent unfaithfulness
sneak copulation
being unfaithful
sperm is less rare than ova
female
handicap hypothesis
some may pick men with handicaps
thrive despite adversities
e.g drug users
sexy sons hypothesis
select physically attractive men
likely to pass on to children
increase offspring's chance of reproducing
courtship