Baby Beaver . Baby beavers are called kits, or kittens. They are usually born in litters of two to five animals. They remain in the lodge for the first month of life, and then stay with their parents in a family group for two years.
Led Zeppelin IV was a commercial and critical success, producing many of the band's most well-known songs, including  Black Dog ,  Rock and Roll ,  Misty Mountain Hop ,  Going to California , and the band's signature song,  Stairway to Heaven .he untitled fourth studio album by the English rock band Led Zeppelin, commonly referred to as Led Zeppelin IV, was released on 8 November 1971 on Atlantic Records.
Jimmy Page was already an experienced lead guitarist who worked with multi-instrumentalist John Paul Jones in 1967, and they agreed to work on the next project. In August 1968 Page invited Robert Plant and John Bonham to join his band, the New Yardbirds, for a September tour in Scandinavia.In October 1968 they took the name Led Zeppelin, which stemmed from a humorous conversation among several musicians about their chances of going down like a lead balloon.rior to the release of their first album, Led Zeppelin made live appearances at the University of Surrey and in London in October 1968, then went on their first American tour in December 1968. In their first year, Led Zeppelin made four concert tours in the USA, and another four tours in the UK.