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
A Letter to a Hindu A Letter to a Hindu "A Letter to a Hindu" (also known as "A Letter to a Hindoo") was a letter written by Leo Tolstoy to Tarak Nath Das on 14 December 1908. The letter was written in response to two letters sent by Das, seeking support from the famous Russian author and thinker for India's independence from British colonial rule. The letter was published in the Indian newspaper "Free Hindustan". The letter caused the young Mohandas Gandhi to write to the world-famous Tolstoy to ask for advice and for permission to reprint the "Letter" in Gandhi's own South African