But there is no biological reason people in the north eastern United States should be able eat fresh oranges and pineapples in December. If the goal is to be p

But there is no biological reason people in the north eastern United States should be able eat fresh oranges and pineapples in December. If the goal is to be pedantic, then technically the "biological reason" is that nature gave humans the ability to alter their environment in ways that allows the north eastern United States to eat fresh oranges and pineapples in December.