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
Farewell Letter to the American People Farewell Letter to the American People The "Farewell Letter to the American People" was a widely published letter by Choctaw Chief George W. Harkins in February 1832. It denounced the removal of the Choctaw Nation to Oklahoma. It also marked the beginning of a large process that would remove Native Americans who were living east of Mississippi, the Trail of Tears. Harkins wrote the letter to explain what it feels like to leave one's ancestral homes to satisfy the desires of others. The letter is still considered one of the most important documents in Native American history: Arthur H. DeRosier