. The emigrations of animals from the sea. Animal ecology; Animal migration. Reproduction 63 justed more or less to life in fresh water or on land. Many species of animals tend to segregate most sharply into particular habitats while breeding. Certain species of salamanders may often live to- gether but when mating and spawning segregate into diiferent situations (Noble, 1927).. Fig. 9. In a Colombian swamp a snail deposits its group of eggs above the surface of the water where there is an abundance of oxy- gen and more or less freedom from aquatic predators. Animals continually seek suitable
. The emigrations of animals from the sea. Animal ecology; Animal migration. Reproduction 63 justed more or less to life in fresh water or on land. Many species of animals tend to segregate most sharply into particular habitats while breeding. Certain species of salamanders may often live to- gether but when mating and spawning segregate into diiferent situations (Noble, 1927).. Fig. 9. In a Colombian swamp a snail deposits its group of eggs above the surface of the water where there is an abundance of oxy- gen and more or less freedom from aquatic predators. Animals continually seek suitable breeding sites. This leads such animals as wasps and birds to resort to craggy cliffs; certain birds and seals seek out barren ocean islands; and other birds fly far to the Arctic barren lands. To attain proper conditions animals also leave the ocean for fresh water and aquatic habitats on land. Thus they secure safety, aeration, and other desiderata. The seeking of. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Pearse, A. S. (Arthur Sperry), 1877-1956. Dryden, N. Y. , Sherwood Press
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