Coypu she may give birth to as few as one or as many as 13 offspring. Baby coypus are precocial, born fully furred and with open eyes; they can eat vegetation with their parents within hours of birth. A female coypu can become pregnant again the day after she gives birth to her young. If timed properly, a female can become pregnant three times within a year. Newborn coypus nurse for seven to eight weeks, after which they leave their mothers. Besides breeding quickly, each coypu consumes large amounts of vegetation. An individual consumes about 25% of its body weight daily,
The Fur Worker Kaufman was another editor of "The Fur Worker" during the 1920s. As of 1925, "The Fur Worker" had a circulation of around 12,000. Issues were sold at 50 cents. In its later years, publication of "The Fur Worker" became more irregular. The publication was suspended between May 1929 and January 1930. Between September 1930 and April 1931 it was issued under the name Fur Workers' Hope. Publication of "Fur Workers' Hope" was discontinued in May 1931. In June 1937 "The Fur Worker" was revived. In the same year the parent under switched its affiliation from the American Federation of Labor