Rich Hardy is a former undercover investigator who spent two decades working in 28 countries, exposing animal cruelty of many of the worlds worst industries – including fur trapping in North America, monkey breeding farms in Asia, and slaughterhouses and factory farms across the globe. His images and videos have been used by more than 20 international animal organizations helping to change minds and laws about how we treat animals.

Most of the industries Rich worked in are hidden from the public, extraordinarily secretive, and often have higher security than Area 51; therefore Rich lived an incredibly risky double life for much of those 20 years. He had to take jobs doing the very thing he was there to expose and many of his assignments involved working with and often befriending those causing harm and suffering to the animals he was fighting to protect.

One would think that 20 years of witnessing that kind of mass scale abuse would harden the soul and embitter just about anyone, but Rich is one of the kindest, most thoughtful guys out there. His work only broadened his already enormous capacity for compassion - toward animals but also toward some of the very human beings he worked amongst.

He wrote a book about it, called, Not As Nature Intended. It's based on his journals from his time undercover and somehow, manages to not only show the darkness and devastation of the worlds he had to become a part of, but there's also light, hope, and enormous heart. It's a testament of what he saw and of what billions of animals have endured and still endure every minute of the day.

He and I spoke last week from our respective quarantines, his in the UK and mine in New York. I was especially interested in his time on factory farms, what he witnessed, the sickness and disease that are an inherent part of the industry, and why he is not at all surprised that we are in the midst of a pandemic that was caused by of our relationship to animals.

In order to prevent future pandemics, it's not just wild animal markets that need to shut down, it's every industry in which we exploit animals.

And factory farming should be right up there on the top of every single human's list.