And the preceding passage: "Explorers and naturalists of previous centuries give staggering testimony to the incredible natural wealth of North America and oth

And the preceding passage: "Explorers and naturalists of previous centuries give staggering testimony to the incredible natural wealth of North America and other places before colonization. Here are some images from another book, Steve Nicholls’s Paradise Found: Atlantic salmon runs so abundant no one is able to sleep for their noise. Islands “as full of birds as a meadow is full of grass.” Whales so numerous they were a hazard to shipping, their spouts filling the entire sea with foam. Oysters more than a foot wide. An island covered by so many egrets that the bushes appeared pure white. Swans so plentiful the shores appear to be dressed in white drapery. Colonies of Eskimo curlews so thick it looked like the land was smoking. White pines two hundred feet high. Spruce trees twenty feet in circumference. Black oaks thirty feet in girth. Hollowed-out sycamores able to shelter thirty men in a storm. Cod weighing two hundred pounds (today they weigh perhaps ten). Cod fisheries where “the number of the cod seems equal that of the grains of sand.” A man who reported “more than six hundred fish could be taken with a single cast of the net, and one fish was so big that twelve colonists could dine on it and still have some left.” I used the word “incredible” advisedly when I introduced these images. Incredible means something like “impossible to believe”; indeed, incredulity is a common response when we are confronted with evidence that things were once vastly different than they are now."