The principle being accepted that all Species of one Genus have arisen from one mother through different fathers, it must be assumed - Carl Linnaeus

The Lord himself hath led him with his own Almighty hand. He hath caused him to spring from a trunk without root, and planted him again in a distant and more delightful spot, and caused him to rise up to a considerable tree. Inspired him with an inclination for science so passionate as to become the most gratifying of all others. Given him all the means he could either wish for, or enjoy, of attaining the objects he had in view. Favoured him in such a manner that even the not obtaining of what he wished for, ultimately turned out to his great advantage. Caused him to be received into favour by the "Mœcenates Scientiarum"; by the greatest men in the kingdom; and by the Royal Family. Given him an advantageous and honourable post, the very one that, above all others in the world, he had wished for. Given him the wife for whom he most wished, and who managed his household affairs whilst he was engaged in laborious studies. Given him children who have turned out good and virtuous. Given him a son for his successor in office. Given him the largest collection of plants that ever existed in the world, and his greatest delight. Given him lands and other property, so that though there has been nothing superfluous, nothing has he wanted. Honoured him with the titles of Archiater, Knight, Nobleman, and with Distinction in the learned world. Protected him from fire. Preserved his life above 60 years. Permitted him to visit his secret council-chambers. Permitted him to see more of the creation than any mortal before him. Given him greater knowledge of natural history than any one had hitherto acquired. The Lord hath been with him whithersoever he hath walked, and hath cut off all his enemies from before him, and hath made him a name, like the name of the great men that are in the earth. 1 Chron. xvn. 8.

Every genus is natural, created as such in the beginning, hence not to be rashly split up or stuck together by whim or according to anyone's theory.

Everything the Almighty Creator has instituted on our globe occurs in such a wonderful order, that no thing subsists without the support of something else: The Globe itself, with all its Stones, Ore, and Gravel, is nourished and sustained by the Elements: Plants, Trees, Herbs, Grasses, and Mosses grow out of the Globe, and Animals eventually grow out of the plants. All of these are finally transformed back into their primary substances, the Earth feeding the Plant, the Plant the Worm, the Worm the Bird, and often the Bird the Beast of Prey; Then finally the Beast of Prey is consumed the Bird of Prey, the Bird of Prey by the Worm, the Worm by the Herb, the Herb by the Earth: Man indeed, who turns everything to his needs, is often consumed by the Beast, the Bird, or the Fish which preys on him, by the Worm or the Earth. It is thus that everything circulates.