The chances of a highly nutritious, energy dense food being just left to go to waste by nature are practically zero. There are many, many examples of animals be

The chances of a highly nutritious, energy dense food being just left to go to waste by nature are practically zero. There are many, many examples of animals becoming highly evolved/specialised to exploit such food sources in habitats that don't feature humans (e.g. the oceans). The GP comment was an egregious example of a "Just-so story".