![Discovery show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/030/810/small/discovery.jpg)
Summary: Rebecca Morelle talks to explorers of deep ocean trenches – the final frontier of exploration on Planet Earth. She meets biologists who have discovered dark realms of pink gelatinous fish and gigantic crustaceans at 8,000 metres down
Summary: Rebecca Morelle talks to explorers of deep ocean trenches – the final frontier of exploration on Planet Earth. She meets biologists who have discovered dark realms of pink gelatinous fish and gigantic crustaceans at 8,000 metres down