If similar phenotypes(e.g. plants with similar flower shapes and color that attract the same insects) breed together, this a positive assortative mating;it may lead to INBREEDING.

• 如果相似的表型（具有相似的花形和花色，吸引相同的昆虫的植物）在一起生育，这种正向选型交配可以导致近交。