Plant growth is rapid and dense. About 85% of the country is covered by heavy rain forest. The dense green of the vegetation never changes, since the more than 6,000 species of plants flower and lose their leaves continuously throughout the year according to species. Tree growth is especially rapid; in the more sparsely forested areas, the trees tower as high as 60 m (200 ft), and the trunks are thickly entwined with vines. There are about 300 species of trees. In the coastal regions, marine plants abound, and wide expanses are covered with tall papyrus grass.
Most tropical fauna species are found in Gabon. Wildlife includes elephants, buffalo, antelope, situtungas, lions, panthers, crocodiles, and gorillas. There are hundreds of species of birds.