selective breeding
"Selective breeding is like the deliberate pairing of Hollywood celebrity Brad Pitt with Oriental beauty Gong Li to try to guarantee an attractive, good-looking progeny. In contrast, genetic modification is like mixing Brad Pitt's genes with the genes of a cheetah to produce a good-looking human Olympic sprinter."
"Breeding is like pouring liquid through a funnel into a bottle. It focuses and streams it all into the new container. Selective breeding is like using a filter when you pour. Only whatever is allowed through the filter goes into the bottle"
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.