A savanna or savannah is a mixed woodland-grassland biome and ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient
A tree savanna at Tarangire National Park in Tanzania in East Africa
A grass savanna at Kruger National Park in South Africa
A savanna woodland in Northern Australia demonstrating the regular tree spacing characteristic of some savannas
Bushfire in Kakadu National Park, Australia
A forest is an ecosystem characterized by a dense community of trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use
The Amazon rainforest alongside the Solimões River, a tropical rainforest. These forests are the most biodiverse and productive ecosystems in the world.
Since the 13th century, the Niepołomice Forest in Poland has had special use and protection. In this view from space, different coloration can indicate different functions.
Temperate rainforest in Tasmania's Hellyer Gorge