I had been wanting to film Eunice aphroditois, a Bobbit worm, for years. It’s a giant carnivorous worm that can grow over a metre long. With dagger sharp jaws and lightning fast reactions ...

David Attenborough introduced us all to a nightmarish creature known as the bobbit, a metre-long worm with jaws as sharp as daggers – and we're not likely to forget about it any time soon.