'tree of life'

Scientists have solved the mystery of the origins of ancient baobab trees.

According to DNA studies, the iconic trees first arose in Madagascar 21 million years ago.

Their seeds were later carried on ocean currents to Australia and also to mainland Africa, evolving into distinct species.

The researchers are calling for greater conservation efforts for the trees, which they say may be closer to extinction than previously thought.

Baobabs are known as "the tree of life" or "upside down tree" for their strange shapes and longevity. They are in trouble because of climate change and widespread deforestation.

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Where in that article does it talk about the mystery that has been solved? Did I miss it or is it just not there?