Why Geese are Better than Swans (but not Smarter)

Canadian geese and swans mate for life. Both are part of the Anatidae family. As birds they are not very religious and so this might cause some people to scratch their collective heads in wonder -- certainly in California. But I believe after some careful research that there was a period in their evolution, long before man kept records of such things outside of a few still undiscovered cave walls, where there were just too many geese divorce lawyers and the birds just had had enough. No goose would mate with another goose practicing law -- gander and goose alike -- and soon the subspecies, or gaggle, died out. The swans saw the geese euphoria and followed suit. In two generations both entire species were devoid of expensive family-law firms and there was no longer reason to be anything but monogamy once you found a mate. It ended up being much better for the goslings as well (geese are very fond of their offspring) an...