All In The Mind is a great Australian radio show on a variety of mind-related topics: “dreaming to depression, addiction to artificial intelligence, consciousness to coma, psychoanalysis to psychopathy, free will to forgetting.”
The most recent episode describes dolphin brain biology and explores the philosophical status of the animals, as well as the ethics of keeping seemingly intelligent animals captive in aquariums.
The segment includes an interview with Thomas I. White (starting around 22:20) who wrote In Defense of Dolphins. He argues that dolphins have cognitive traits that qualify them as “non-human persons.”