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.
If they make music on this scale in 2014, itâs certainly not to be found in the rock genre, and youâd be pretty hard-pressed to find it anywhere else, either. As a tribute to Led Zeppelin, weâve ranked all 87 songs in their recorded catalog. Any song to ever appear on a commercial Led Zeppelin release â even the live ones and the reissues â can be found here; for songs with multiple recorded versions, we opted for the best-known rendition.