Extraordinary Seaweeds: The hidden lives of the ocean's architects

Seaweeds - or marine algae - are one of the most diverse and dazzling organism groups on the planet. They have existed for over 1.6 billion years and survived every extinction event on the planet. Capable of thriving in some of the most extreme environments on earth, marine algae are found within in sea ice of the Arctic Ocean, as well as extreme acid, alkali and salt environments, and have been recorded at ocean depths of over 200m.

Professor Juliet Brodie, internationally renowned expert ...