Joining me this episode is Dr Eugene McCarthy from macroevolution.net. Eugene’s work explores the theory that a conventional view of evolution is incomplete, and that cross-species hybridisation played a significant role in the development of many modern species, including humans.

This month on Be Reasonable we dip back into the archives for one of the most troubling interviews I’ve ever been involved in.

Back in 2010, reports emerged about a product called Miracle Mineral Solution - a pseudomedical panacea which was touted as a treatment for cancer, AIDS, malaria and Crohn’s disease, yet in actuality was much closer in chemistry to a form of industrial bleach. The founder and main proponent of MMS was Jim Humble, whose name quickly began to appear in the press, and who turned down interviews with the BBC and with the Guardian. He did, however, agree to speak to Hayley and me for our old podcast, Righteous Indignation.

It’s an interview that affected me greatly, and one I think about regularly, which is why I’d like to present it now, for the first time, in its unbroken entirety.

This month, Marsh speaks with Dr Alan Sanderson. As well as being the former president of the Spirit Release Foundation, Alan is a psychiatrist who treats psychiatric disorders by removing the inhabiting spirits of the deceased from his patients. His website can be found at www.alansanderson.co.uk.

Joining Marsh this month is Christopher Doyle, director of the International Healing Foundation - a group which controversially aims to offer their help to people suffering from unwanted same-sex attraction.

In this month’s episode, Marsh spoke with UFO researcher and alternative historian David Boyle, proprietor of Exhibition of the Universe in Blackpool, UK. David regularly gives talks and interviews on all manner of subjects from ancient aliens to psychic abilities and government conspiracies.

In this month’s episode we’re joined by psychic Rafael Dellal. Rafael, a clairvoyant and medium, spoke to us about his work, the tools used by mediums, how to spot a real medium from a fake medium and the ethics of psychic readings.

Regular listeners will note that Hayley Stevens is no longer involved with Be Reasonable - Hayley has left the show, having decided to take a break from podcasting completely. We thank Hayley for all the excellent work she’s done with the show and wish her all the best. Marsh will be taking the show forward alone.

This month, we chat to Richard Freeman. Richard is the zoological director of the Centre for Fortean Zoology. He talks to Hayley and Marsh about cryptozoology and why he thinks there’s much more to monsters than just Nessie and Bigfoot…

A show called Cell Block Psychic recently premièred in the US, following self-proclaimed psychic & cold case investigator Vicki Monroe as she meets with notorious murderers and claims to deliver messages from their victims. Hayley and Marsh revisit an interview they conducted with Monroe in 2011.

This month, Marsh chats to Robert Currey - an astrologer and researcher with Equinox Astrology.

Former Lib Dem MP, Lembit Öpik is probably already a familiar face after appearances on Have I Got News For You and I’m a Celebrity, Get Me Out of Here! However, you may not know that he is also a champion for near-earth object studies and a UFOlogist at the Association for the Scientific Study of Anomalous Phenomena. He talks to Be Reasonable about what this involves.