One organism or group of organisms want more land and more food, so they expand out to grow.
"An invasive species is like an oil spill that can never be cleaned up because it's constantly replicating itself," she says. "It is a form of biological pollution that is so subtle and insidious that many people do not realise it is there."
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.