How cultured are animals? It’s a question the marine biologist Karsten Brensing explores as he studies dolphins calling one another by name, ducklings scoring well in abstract reasoning, and the loyalty, forgiveness and empathy that are becoming apparent in the animal kingdom. He tells Andrew Marr that the latest scientific findings reveal animals with behaviour and cognitive sophistication very similar to our own.

The intricate lives of animals and birds plus their spectacular habitats are on television screens this autumn with the BBC’s series Seven Worlds, One Planet. In a forthcoming episode the producer Emma Napper shows how species isolated on Australia have evolved like nowhere else on Earth: from the most dangerous bird in the word, the cassowary, to desert reptiles that drink through their skin.

Although concern for animals has been expressed since ancient times, it was only in the early 19th century that the first laws protecting animals were passed. The historian Diana Donald looks back at the chequered past of animal welfare, and the pioneering woman who helped bring about change. While cattle and domestic animals were protected under laws in 1822 and 1835, it took decades until wild animals were included.

Rhinos were once found throughout Eurasia and Africa, but now three of the five rhino species face extinction unless drastic action is taken to counter poaching and habitat loss. This has led scientists, including Professor Fritz Vollrath of Oxford University, to come up with the ingenious invention of fake rhino horn. Using horse hair and regenerated silk the fabricated horn is almost indistinguishable with the real thing, and could be used to undermine the market in rhino horn.

Producer: Katy Hickman