Dr Ruth Freeman looks at grooming behaviour discovered in orcas and how plastics bottles can now be turned into paracetamol. Orcas, also known as killer whales, have been observed mutually grooming each other with a type of seaweed. Also a new discovery has been made researchers have found that bacteria can be used to turn plastic waste into painkillers, opening the possibility of a more sustainable process for producing the drugs.

All to discuss in this week's Green Scene with thanks to Repak.