This week in the Planet Earth podcast, Tamara Galloway, Matt Cole and Ceri Lewis of the University of Exeter talk about their research on the effects of fragments of plastics from food packaging, drinks bottles, and even facial scrubs, on marine wildlife.

This week in the Planet Earth podcast, Elizabeth Wellington and Greg Amos of the University of Warwick explain how sewage treatment could be helping spread highly drug-resistant bacteria around the environment.

This week in the Planet Earth podcast, Steve Simpson and Rick Bruintjes of the University of Exeter and HR Wallingford describe a huge experiment to find out how man-made, underwater noise affects cod, plaice, crabs and other marine life.

This week in the Planet Earth podcast, Ilik Saccheri and Arjen van 't Hof of the University of Liverpool describe how the British peppered moth changed from peppered to black during the Industrial Revolution in northern England.

This week in the Planet Earth podcast, Roy Wogelius and Nick Edwards of the University of Manchester explain how they used extremely bright light from particle accelerators to delve into the chemistry of exceptionally well preserved fossil leaves from the Green River Formation in the US.

This week in the Planet Earth podcast, Helen Hoyle of the University of Sheffield and Jim Harris from Cranfield University describe what a strip of land in Luton, southeast England, is doing for urban biodiversity.

This week in the Planet Earth podcast, Victoria Egerton, Bill Sellers and Phil Manning of the University of Manchester describe how the bones of a 72-million-year-old, 2·2m-tall 7·4m-long predatory dinosaur reveals intimate clues about how it lived and how it survived massive trauma.

This week in the Planet Earth podcast, Joanna Bullard and Jonathan Millett of Loughborough University describe the work they're doing to find out how quickly sand dunes along the east coast of England recover from the erosion caused by massive storm surges - like the one that struck the UK coastline on 5 December 2013.