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The remarkable world of nature's hidden sounds and the way species communicate are being revealed by scientists using digital bioacoustics.
Canadian scientist, Professor Karen Bakker, is an author and award winning researcher of digital innovation and environmental governance.
A Rhodes Scholar with a PhD from Oxford University, she is a Professor at the University of British Columbia, and currently Distinguished Visiting Professor at the Harvard Radcliffe Institute For Advanced Study.
Her latest book is The Sounds of Life: how digital technology is bringing us closer to the worlds of animals and plants.
The book looks at the work of thousands of researchers into non-human sounds using bio acoustics which Professor Bakker describes as a "planetary-scale hearing aid, enabling humans to record nature's sounds beyond the limits of human sensory capacities".
She describes astonishing discoveries such as Amazonian sea turtles making 200 distinct sounds; bats remembering favors and holding grudges, and that tomatoes, tobacco and corn seedlings actually make noises.
