...They are unsurpassedin powers of flight, but are only fair swimmers and rarely, if ever, dive, gettingtheir food, which consists of dead animal matter, from the surface of the water... 
Chester A. Reed 「The Bird Book」
...Islands in large lakes offer a splendid place to begin raisingfur-bearing animals, and especially those that do not like to get their"fur wet" or that naturally are not swimmers...
A. R. Harding 「Fur Farming」
...Killer whales are extremely fast swimmers, capable ofreaching top speeds of 25 knots or more, and have beenreported "porpoising" and breaching...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...To get these, they wade into the lakes and rivers like the moose, and, like them, are good swimmers...
Mayne Reid 「The Hunters' Feast」
...This was easy enough, as we were all swimmers, and in a few minutes most of the party were safely landed on the other side...
Mayne Reid 「The Hunters' Feast」
...It drifted swiftlyamong the swimmers, who struggled to reach it...
Various 「Astounding Stories, March, 1931」
...The natives of the Darling live chiefly on the fish of the river, and are expert swimmers and divers...
Thomas Mitchell 「Three Expeditions into the Interior of Eastern Australia, Vol 1 (of 2)」
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