Patagonian toothfish 50 years and to reach a length up to . Several commercial fisheries exist for Patagonian toothfish which are detailed below. This species is also sold in the trade under the culinary names Chilean seabass in the United States and Canada; in Argentina, Peru and Uruguay; legine australe in France; mero in Korea, Japan, and Spain, and bacalao de profundidad in Chile. The name "Chilean seabass" was invented by a fish wholesaler named Lee Lantz in 1977. He was looking for a name that would make it attractive to the American market. He considered "Pacific sea bass" and "South American
Patagonian opossum of La Pampa and Choele Choel (northern Rio Negro Province). It is suggested that the Patagonian opossum may have emerged from the same ancestral group as "Marmosa". They resemble each other closely. In the winter both types have similarly thickening at the base of the tails, where fat accumulates. Yet they do not share all aspects of their lifestyle; Patagonian opossums have a specialized way to gather and consume food, which is made possible by the shortening of their skull and jaws. The shortening occurs in the premolar region; this gives the Patagonian opossum increased biting power. The general appearance