 Darwin studied the relationships of species to habitats and found ancient fossils like those he had found in Wales.FitzRoy bought a schooner to assist with the surveying, and they returned to Patagonia where this was fitted with a new copper bottom and renamed "Adventure".Darwin was assisted by Syms Covington in preserving specimens and his collecting was so successful that with FitzRoy's agreement he took on Covington as a full-time servant for £30 a year.