One way to keep birds and other animals safe from plastic rubbish is to collect it before they have a chance to eat it.
The Waste Shark is tested in Rotterdam harbour
The Waste Shark is a car-sized robotic catamaran that collects rubbish in a net between its twin hulls and then takes it to a dock where it can be disposed of.
Richard Hardiman came up with the idea, and has been trialling the technology at the giant port of Rotterdam.
To the listen to the story from the founder Richard Hardiman click the link below: