Flightless bird requirement for flightlessness. The kiwi does not exhibit gigantism, along with tinamous, even though they coexisted with the moa and rhea that both exhibit gigantism. This could be the result of different ancestral flighted birds arrival or because of competitive exclusion. The first flightless bird to arrive in each environment utilized the large flightless herbivore or omnivore niche, forcing the later arrivals to remain smaller. In environments where flightless birds are not present, it is possible that after the K/T Boundary there were no niches for them to fill. They were pushed out by other herbivorous mammals. New Zealand had
Ego Is Not a Dirty Word Ego Is Not a Dirty Word Ego Is Not a Dirty Word was the second studio album released by Australian pop rock band, Skyhooks, in July 1975. The album was the follow-up to their highly successful debut album, "Living in the 70's" (1974). As with the former album, it was also produced by Ross Wilson. The album spent 11 weeks at the number-one spot in the Australian Kent Music Report Albums Chart and sold 180,000 copies. Two singles were lifted from the album, "Ego Is Not a Dirty Word" and "All My Friends are Getting Married". The American release of