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Is this a temporary or permanent position? <a href=" http://www.redfiveit.com/finance-assignment-help-online ">judaism research paper</a> A subset of these jawed fish developed bony plates on their heads and shoulders, earning the name osteichthyans. Descendants of a subset of those bony fish, called lobe-finned fishes, eventually crawled out of the water to become the first tetrapods, the ancestors of all terrestrial vertebrate life on Earth, including humans.