Umbilical cord from the offspring. The cord along with the placenta is often eaten by the mother, to provide nourishment and to dispose of tissues that would otherwise attract scavengers or predators. In chimpanzees, the mother leaves the cord in place and nurses her young with the cord and placenta attached until the cord dries out and separates naturally, within a day of birth, at which time the cord is discarded. (This was first documented by zoologists in the wild in 1974.) Some species of shark — hammerheads, requiems and smooth-hounds — are viviparous and have an umbilical cord attached to their
The Umbilical Brothers extensive use of their particular style of mime and humour. In December 2006, in a "New York Post" interview, Shane Dundas expressed doubts about the return of the show for a second season. In June 2007, Nickelodeon announced that they would not renew it for a second season. The two had voice roles in "Maya the Bee" as ant soldiers, with Collins voicing Arnie and Dundas voicing Barney. The Umbilical Brothers have performed six shows, four of which appear as DVDs: The Umbilical Brothers Shane Dundas and David Collins known as The Umbilical Brothers are an Australian comic duo. Dundas