A thousand years old and 20 storeys high: tracking down Taiwan's tallest trees

The country's biggest tree - named Heaven Sword of the Da'an River - is a carbon-storing behemoth hosting whole neighbourhoods of wildlife. But this and other giant trees are under threatThe higher you climb up the gigantic, millennia-old trees of Taiwan's forests, the more layers of habitat and life emerge. On the forest floor, ferns thrive in the moist shade. Flying squirrels and owls sleep inside the hollow tree trunks. Yellow bell-shaped rhododendron flowers spring from the lower tree canopy. Higher still, dense lichen spread. Up in cloud-drenched branches, a rare, hardy orchid, Bulbophyllum ciliisepalum, can be spotted."In one tree, every species has their preferred location," says Dr Rebecca Hsu, assistant researcher at the Taiwan Forestry Research Institute. "Every metre the temperature, the wind, the sun, the light is different." Continue reading...