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With some 7 million dried plant specimens, the herbarium at Kew Gardens in London is one of the largest collections of its kind in the world. Building on the Linnaean system, through Darwin to DNA, scientists there have traced the relationship between plant life-forms and the timeline of their development over the ages – from algae to mosses to flowers. While the plant family tree is thought to be 95 per cent complete, this short documentary reveals that continuing to study plants gives us an important framework for asking questions about how our ecosystems actually work.
Video by Lonelyleap
Meaning and the good life
To know or not to know? Lillian weighs the costs of a life-changing genetic test
Liquid experiments show how beautiful things can happen when chemicals meet
Philosophy of mind
Caring for the vulnerable opens gateways to our richest, deepest brain states
The Standard Model might be the most successful theory in science. But what is it?
Meet the citizen scientist who changed how we see the Sun, and science itself
Information and communication
The modern world is littered with statistical noise. Here’s how to find the signal
On the run from COVID-19, an Indigenous family treks deep into the Amazon rainforest
Building ‘bigger and better’ has pushed cosmology forward. Can it take it any further?
Watch the elegant flow of a sheep herd, seen from the sky above Israel