Many deciduous trees put on a dazzling fall foliage display. But coniferous evergreens hold on to their needles and stay green. A biologist breaks down these different survival strategies.
During its first few decades, this tree is the runt of the rainforest. And then it starts its growth spurt, and can go on to live for millennia.
Australia is home to some of the oldest trees in the world. But how do they live so long?
Restoring habitats have numerous benefits, they can also benefit humanity. But it is for people to be convinced that they can actually do good.