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
Work Is a Four-Letter Word were members of the Royal Shakespeare Company (Waller, Howard, Church "et al.") or stalwarts of British realist drama (Gladwin). The film was shot on location at Belvedere Power Station (now demolished) which was located on the south side of the Thames near Erith, England. Interiors were completed at Shepperton Studios near London. At the time "Variety" magazine compared the film thematically with Charlie Chaplin's "Modern Times" but was critical of its "irritating air of improvisation" and described the storyline as "thin", albeit praising some of the off-beat situations as "very funny". Leslie Halliwell, in his "Film Guide", was even more