Golden jackals are extremely harmful to fur-bearing rodents, such as coypu and muskrats. This control allowed for the removal of 97,000 coypu in 1961 and 1962. Fur farm escapees such as coypu and American mink have extensive populations. The first efficient and extensive coypu farms were located in South America in the 1920s. They resemble the coypu in some respects. Nutria fur, also known as coypu fur, is used in the fashion industry. This campaign succeeded in fully eradicating coypu in Great Britain. Their most important economic benefit to humans may be the control of coypu and muskrats. It comes from the coypu, a South American rodent and cousin of the beaver. During the 1960s, a grant was awarded to Rabbit Clearance Societies that included coypu. Nutria, or coypu fur is traditionally sheared, dyed and plucked. Besides breeding quickly, each coypu consumes large amounts of vegetation. In France, the coypu is known as a "ragondin". Coypu population and range increased causing damage to agriculture in the 1950s. A coypu was first sighted in the wild in Ireland in 2010.