Misha Glenny and guests discuss one of the wonders of the natural world. In 1875 in the western Pacific, the crew of HMS Challenger discovered the Mariana Trench which turned out to be deeper than Everest is high, by two kilometres. Trenches like Mariana form when one tectonic pl ...Show more
The Evolution of Lungs
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
Coral reefs are an essential ecosystem undeniably threatened by climate change. Can scientists breed a stronger coral for the future? For show transcripts, go to bit.ly/unx-transcripts For more, go to http://vox.com/unexplainable It’s a great place to view show transcripts and re ...Show more
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
Crown-of-thorns starfish (COTS) are marine invertebrates native to the Great Barrier Reef. They feed exclusively on live coral and grow rapidly, producing millions of offspring once they mature. COTS outbreaks cause significant damage to coral reefs across large areas, and are on ...Show more