Creepy things caught in photos

If all the swans we encounter are white, the ornithologists dig deeper and study the the genome and coding for feather coloration (building the philosopher WV Quine's "web of belief") and possible adaptive disadvantages to any color mutation. At some point, they settle on a taxonomic description of swans, or polar bears, which all began with an inductive data set on white coloration and pretty long necks.


Nothing is certain. Not even the most thorough of ornithologists can rule out a sudden unexpected mutation.


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