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.
The Beatles were always eager to try practically anything in their quest for new and different sounds. John Lennon's use of a Hohner Pianet N electric piano on The Night Before being a good early example. A Hohner Pianet would also later be used on songs such as I Am The Walrus and Revolution. The Mellotron flutes on Strawberry Fields Forever is another classic example of their use of emerging keyboard technology, as was their use of the Moog IIIP synthesizer that can be heard on Abbey Road.