Because of its long isolation from the rest of the world, New Zealand has extraordinary flora and fauna. Until the arrival of the first humans just a millennium or two ago, 80% of the land was forested and, barring two species of bat, there were no non-marine mammals at all. Instead, New Zealand's forests were inhabited by a diverse range of birds (many of them flightless), reptiles, and insects—some of them almost the size of a mouse (see weta).
While New Zealand men often take pride in being 'strong, silent types', this attitude may have a downside in contributing to New Zealand having one of the highest suicide rates among young males in the industrialised world.
New Zealand has no native land mammals apart from some rare bats. Later Maori largely subsisted by cultivating the kumara, a type of sweet potato, which they had brought with them from Polynesia.
New Zealand is the most geographically isolated of all countries. Its closest neighbour Australia is 2,000 km to the northwest of the main islands across the Tasman Sea. The only landmass to the south is Antarctica, and to the north are New Caledonia, Fiji, and Tonga.
Christianity is the predominant religion in New Zealand, although over a quarter of the population has no religious affiliation. The main Christian denominations are Anglicanism, Presbyterianism, Roman Catholicism and Methodism. There are also significant numbers who identify themselves with Pentecostal and Baptist churches and with the Mormon church. The New Zealand-based Ratana church has many adherents among Maori. According to census figures, other significant minority religions include Hinduism, Buddhism and Islam.
Sporting and outdoor activities still play a significant part in the recreation of New Zealanders. Participation in a sport, rather than mere spectating, is considered a worthy pursuit. Team sports and sporting abilities are generally held in high regard, with top-performing players often becoming celebrities. However, New Zealanders can often be scathing when national sports teams and athletes lose.
The Cabinet, which is responsible to Parliament, exercises executive authority. (The Cabinet forms the practical expression of a formal body known as the Executive Council.) The Prime Minister, as the leader of the political party or coalition of parties holding the majority of seats in the House of Representatives, leads the Cabinet. All Cabinet Ministers must be Members of Parliament (MPs) and are collectively responsible to it.
Rugby as a sport is closely linked to New Zealand's national identity. The national rugby team is called the All Blacks and has the best winning record of any national team in the world. The style of name has been followed in naming the national team in several other sports. New Zealand's national sporting colours are not the colours of its flag, but are black and white (silver). The silver fern is a national emblem worn by New Zealanders representing their country in sport. The haka—a traditional Maori challenge—is often performed at sporting events. The All Blacks traditionally perform a haka before the start of play.