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Name of resource: Sexual selection & dimorphism
Submitted by: Aidan Sammons
Specification details: AQA-A
Other specifications: 
Guidance: Students are given brief information on the difference between natural and sexual selection.  They
are given photos of pheasants, dragonflies and sheep and invited to identify male & female; describe differences
(opportunity for discussion here).  Questions follow that invite them to consider what this type of sexual
dimorphism (gaudy male) implies about mating strategy/choosiness & consider whether their conclusions apply
to humans.