...From a distance, saddleback dolphins might also beconfused with spinner dolphins because of the habits of bothspecies of congregating in large schools with much jumpingand splashing... 
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...They arefond of congregating near Lake Aral in the summer, but go further to thesouth in winter...
R. Lee 「Anecdotes of the Habits and Instinct of Animals」
ランダム例文：
stimulative plummeting sullen
便利！手書き漢字入力検索
この漢字は何でしょう？？