The Meghalaya subtropical forests ecoregion encompasses the state; its montane forests are distinct from the lowland tropical forests to the north and south. The forests of Meghalaya are notable for their biodiversity of mammals, birds, and plants.
Tribal peoples make up about 85 percent of Meghalaya's population. The Khasi, the largest group, followed by the Garos, were among those known to the British as "hill tribes". Other groups include the Jaintias, the Koch and the Hajong (40,000). About fifteen percent of the population is defined as non-tribal; these include about 54,000 Bengalis and 49,000 Shaikhs. Meghalaya is one of three states in India to have a Christian majority; the other two (Nagaland and Mizoram) are also in the north-east of India. A sizeable minority (16%) of the population follow an ancient Animist philosophy.
East Garo Hills, East Khasi Hills, Jaintia Hills, Ri Bhoi, South Garo Hills, West Garo Hills, West Khasi Hills