Corals

Melvyn Bragg and guests discuss the evolution of lungs and of the first breaths, which can be traced back 400 million years to when animal life spread from rock pools and swamps onto land, as some fish found an evolutionary advantage in getting their oxygen from air rather than w ...  Show more

Melvyn Bragg and guests discuss the decisive role of one of the great 20th Century physicists in solving the question of nuclear fission. It is said that Meitner (1878-1968) made this breakthrough over Christmas 1938 while she was sitting on a log in Sweden during a snowy walk wi ...  Show more

With the threats of sea water warming and ocean acidification, coral reefs have become both a fire alarm and a barometer for the dangers of human induced climate change. We now face the possibility of a world without coral. In this cogent and timely work, Ann Elias interrogates h ...  Show more

Melvyn Bragg and guests discuss the devastating mass extinctions of the Late Devonian Period, roughly 370 million years ago, when around 70 percent of species disappeared. Scientists are still trying to establish exactly what happened, when and why, but this was not as sudden as ...  Show more

Max Pearson presents a compilation of this week's Witness History programmes from the BBC World Service.

You'll hear the story of how a marine biologist made a shocking discovery finding small bits of plastics floating thousands of miles of the east coast of America.

When we think of coral most of us probably think of giant, colorful reef structures. But there's so much more to coral! We take a deeper look at the tiny animals that make up those reefs--and that can be found beyond those reefs, as well. Video for Weekly Challenge: Lens of Time: ...  Show more