Defender Radio and The Switch

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Growing Hamilton's Urban Canopy Sep 22, 2026

Show notes

Hamilton's urban tree canopy currently sits at about 18 per cent, and the City has set a goal of increasing that to 40 per cent by 2050.

That matters for people — but it also matters for wildlife. Trees provide food, shelter and movement corridors for many of the fur-bearing animals who share our urban neighbourhoods, from squirrels and raccoons to skunks and other species.

A new pilot project from the City of Hamilton and the Hamilton Naturalists' Club is helping grow that habitat by bringing free, professionally planted native trees into backyards in lower-canopy neighbourhoods.

To learn more about the program, I spoke with Jen Baker, General Manager at the Hamilton Naturalists' Club, and Louise Thomassin, Senior Project Manager, Forestry and Horticulture with the City of Hamilton.

SHOW NOTES

Hamilton Naturalist's Club: https://hamiltonnature.org/ City of Hamilton' Urban Forest Strategy: https://www.hamilton.ca/home-neighbourhood/environmental-stewardship/environmental-plans-strategies/urban-forest-strategy HNC Backyard Tree Planting Pilot: https://hamiltonnature.org/backyard-tree-planting/

Want to suggest topics for Defender Radio? Reach out to us at info@TheFurBearers.com, by visiting DefenderRadio.com or engaging host Michael Howie on social media via Instagram (www.instagram.com/howiemichael) or Facebook (www.Facebook.com/DefenderRadio).

Defender Radio is produced by The Fur-Bearers (www.TheFurBearers.com), a charitable non-partisan organization whose mandate is to advocate on behalf of fur-bearing animals in the wild and in confinement, promote coexistence solutions in communities and protect the habitats of fur-bearing animals across Canada. You can follow The Fur-Bearers on Instagram (www.instagram.com/furbearers), Bluesky (https://bsky.app/profile/thefurbearers.bsky.social) and Facebook (www.facebook.com/FurFree).

OnlyMarms Featuring Dr. Julien Martin Sep 08, 2026

Show notes

For more than 60 years, researchers have been studying generations of yellow-bellied marmots in Colorado, creating one of the longest-running studies of wild mammals in the world. Dr. Julien Martin is a professor of biology at the University of Ottawa and one of the researchers now leading that project, studying how marmots respond and adapt to changes in their environment.

But keeping a decades-long research project going takes more than good science. When traditional research funding became uncertain, Julien and his colleagues tried something a little different: they launched OnlyMarms, an OnlyFans account dedicated entirely to marmots.

What followed was a surprisingly successful experiment in science communication, fundraising and the internet's apparently limitless appetite for charismatic rodents.

In this episode of Defender Radio, we talk with Dr. Julien Martin about the value of long-term wildlife research, what marmots can teach us, and what happens when scientists have to get creative to keep their work going.

SHOW NOTES:

Episode Art of Kite the Yellow-Bellied Marmot by Laura Green / Rocky Mountain Biological Laboratory

Rocky Mountain Biological Laboratory Marmots Page: https://sites.lifesci.ucla.edu/eeb-rmbl-marmots/

RMBL Marmots on Instagram: https://www.instagram.com/rmblmarmotproject/

OnlyMarms main page: https://onlymarmssolana.org/

Dr. Julien Martin's OnlyMarms GitHub: https://juliengamartin.github.io/onlymarms/

UCLA Coverage of OnlyMarms: https://newsroom.ucla.edu/stories/onlymarms-rodents-are-baring-a-bit-of-fur-for-science

Winner of Fat Marmot Week Coverage: https://www.cbc.ca/radio/asithappens/fat-marmot-week-9.7327200

Dr. Julien Martin's University of Ottawa page: https://www.uottawa.ca/faculty-science/professors/julien-martin

Jimothy and Wild Animal Welfare Science Aug 25, 2026

Show notes

The Fur-Bearers' Wildlife Campaigns and Advocacy Manager Tijana S and Science Communicator and Researcher Dr. Valli Fraser-Celin join the Defender Radio podcast to talk Jimothy, wild animal welfare science, how our use of space impacts wildlife, and a new study on coexistence stats worldwide. Plus a bit of fun and laughter as host Michael Howie is taught more about science, as always.

SHOW NOTES:

Screengrab of Jimothy by Instagram user c1vrgr1 with permission.

Etymology: https://www.ebsco.com/research-starters/language-and-linguistics/etymology Entomology: https://entsoc.org/about/what-is-entomology Ethology: https://www.britannica.com/science/ethology

More about Jimothy: https://thefurbearers.com/blog/jimothy-captured-our-hearts-now-we-need-to-give-him-space/

More about grizzly bears and how our space impacts them: https://thefurbearers.com/blog/sharing-space-with-bears-how-our-behaviour-shapes-encounters/

Sci Comm article, Whose Welfare Counts? The Science of Wild Animal Welfare: https://thefurbearers.com/blog/whose-welfare-counts-the-science-of-wild-animal-welfare/

Sci Comm article, Human–Wildlife Conflict: Insights from 220 Studies in 47 Countries: https://thefurbearers.com/blog/human-wildlife-conflict-insights-from-220-studies-in-47-countries/

Surviving The Wildfire feat. Interior Wildlife Rehabilitation Society Aug 11, 2026

Show notes

Over 21,000 people were evacuated from Summerland, British Columbia, when the Bald Range fire rapidly grew to over 156 square kilometres. Among the thousands of homes that were impacted or destroyed by the wildfire is Interior Wildlife Rehabilitation Society.

The volunteer-run organization, led by founder Eva Hartmann, focuses on water birds, bats, reptiles, and small mammals like beavers, otters, and muskrats. When the call to evacuate came in Eva and her partner chose to enact the Interior Wildlife evacuation plan – and saved all the animals in their care. Tragically, the Interior Wildlife facilities were destroyed by the wildfire. Now, the Interior Wildlife team is launching a fundraiser to rebuild when the time is right, and get back to helping wildlife who need it most.

To share more about Interior Wildlife Rehabilitation Society, the impact of the wildfires, how the team is managing, and what's next, Defender Radio is joined by volunteer Ryan Elisabeth Cope.

SHOW NOTES

Cover image by E. Hartmann/IWRS

Donate to IWRS Rebuilding Effort: https://www.canadahelps.org/en/charities/interior-wildlife-rehabilitation-society/

Learn more about IWRS: https://interiorwildlife.ca/

Find IWRS on Facebook (https://www.facebook.com/p/Interior-Wildlife-Rehabilitation-Society-100064551319807/) and Instagram (https://www.instagram.com/interiorwildlife/?hl=en)

BC 2-1-1 Wildfire Resources: https://bc.211.ca/wildfires/

BC SPCA Wildfire Animal Support: https://spca.bc.ca/bc-wildfire-animal-support/

Urban Habitats and Connectivity featuring Dr. Lenore Fahrig Jul 07, 2026

Show notes

When we talk about wildlife, we often talk about it as though it belongs somewhere else.

A forest. A park. A protected area. Somewhere north of us, away from the roads, neighbourhoods, shopping centres, and backyards where we spend most of our lives. But nature is not somewhere else. It's everywhere.

Coyotes on city streets, raccoons in backyards, skunks under sheds, birds crossing parking lots, insects searching for flowers — all are living in landscapes we have shaped, divided, paved, and rearranged. So what does that mean for them? And what does it mean for us?

Dr. Lenore Fahrig, a highly-cited landscape ecologist at Carleton University joins Defender Radio to discuss what habitat loss and fragmentation mean for wildlife, how fur-bearing animals move through cities, and what we can do as individuals and in our communities to create more essential connectivity.

SHOW NOTES:

Episode art by Ken Duffney / Getty

Dr. Lenore Fahrig's Lab page: https://carleton.ca/fahriglab/

Dr. Lenore Fahrig's Bio page: https://carleton.ca/biology/people/lenore-fahrig/

Study – Nature-based solutions for urban biodiversity: Spatial targeting of retrofits can multiply ecological connectivity benefits: https://www.sciencedirect.com/science/article/pii/S0169204624001683

Podcast interview on above study: https://thefurbearers.com/blog/defender-radio/biodiversity-and-urban-connectivity/

The Space Wildlife Needs feat. Dr. Valli Fraser-Celin & Tijana Jun 16, 2026

Show notes

Defender Radio host Michael Howie is joined by colleagues Dr. Valli Fraser-Celin and Tijana (Wildlife Campaigns and Advocacy Manager at The Fur-Bearers) to talk about studies covering drones and British Columbia's endangered species, plus a chat about what kind of space wildlife needs this time of year.

SHOW NOTES

Episode artwork of an edangered Vancouver Island Marmot by James Telford / iNaturalist / CCBY4.0 (modification included cropping and display text).

Learn more about Dr. Valli Fraser-Celin: Instagram: https://www.instagram.com/thelivesofwilddogs/ Articles on TheFurBearers.com: https://thefurbearers.com/tag/drvallifrasercelin/

Articles and Studies referenced:

When Drones Disturb Nature: What Wildlife Research Is Telling Us: https://thefurbearers.com/blog/when-drones-disturb-nature-what-wildlife-research-is-telling-us/

Species at Risk in British Columbia: What 17 Years of Data Reveal: https://thefurbearers.com/blog/species-at-risk-in-british-columbia-what-17-years-of-data-reveal/

Dear Grizzly Bear 142, Mother of a Train-Struck Cub (by Cleo Shedden): https://thefurbearers.com/blog/dear-grizzly-bear-142-mother-of-a-train-struck-cub/

The Lost Words by Robert McFarlane: https://houseofanansi.com/products/the-lost-words

How to Pronounce Arthropod: https://dictionary.cambridge.org/pronunciation/english/arthropod

Fur Farming and the Next Pandemic featuring Dr. Neil Vora Jun 02, 2026

Show notes

It feels like yesterday – and a lifetime ago – that the COVID-19 pandemic swept across the world. I don't know about you, but I'm still dealing with that experience, and I see the impact of it around me regularly. What's most upsetting, perhaps, is that experts are sending clear messages: it's not if, but when the next pandemic will hit.

A major source for potential virus spillover is fur farms, of which there remain dozens in Canada today, despite a British Columbia mink fur farm ban announced in 2021. Dr. Neil Vora, a former CDC epidemiologist, Executive Director of the Preventing Pandemics at the Source Coalition and Orchestrator in Residence at Integral, and passionate conservationist, is one of many people pushing for change. Dr. Vora joins Defender Radio to discuss the risks of fur farms, how Canada and other nations can embrace One Health policies, and how our relationship with nature is at the core of it all.

SHOW NOTES

Photo of a mink on a Canadian fur farm by We Animals

Dr. Neil Vora's website: https://neilvora.com/

Preventing Pandemics at The Source: https://www.preventingfuturepandemics.org/

Ban fur farming or risk a new pandemic (The Guardian, by Dr. Neil Vora): https://www.theguardian.com/commentisfree/2026/apr/24/fur-farming-pandemic-risk

Marking the end of fur farming in British Columbia: https://thefurbearers.com/blog/marking-the-end-of-mink-farming-in-british-columbia/

Spring in the Wild City featuring Nathalie Karvonen May 19, 2026

Show notes

This time of year is glorious for all of us – and for the wild neighbours with whom we share our communities. From black bears and coyotes to skunks and squirrels, wildlife is out and about, finding new den sites, food sources, and introducing their families to the world around them – even in cities. Sadly, human infrastructure and behaviours can lead to tragic outcomes for many animals; and that's why dedicated wildlife rehabilitators across the country need your help.

Joining us to talk about spring wildlife and their families, the surprising biodiversity of major cities like Toronto, and how you can help your local wildlife rehabilitator is Nathalie Karvonen, Executive Director and Founder of the Toronto Wildlife Centre.

SHOW NOTES

Episode art of a Toronto raccoon by bukharova / Getty Images

Toronto Wildlife Centre website: https://www.torontowildlifecentre.com/

Toronto Wildlife Centre Instagram: https://www.instagram.com/torontowildlifecentre/

Impacts of Wildlife Feeding Along RBG Trails: https://www.rbg.ca/impacts-of-wildlife-feeding-along-rbg-trails/

Paris has successfully cut noise pollution, but urban birds still can't sing at their natural pitch: https://theconversation.com/paris-has-successfully-cut-noise-pollution-but-urban-birds-still-cant-sing-at-their-natural-pitch-280229

Ontario Gov page on Wildlife Rehab: https://www.ontario.ca/page/find-wildlife-rehabilitator

Communicating Coexistence feat. Dr. Valli Fraser-Celin + Tijana S. May 05, 2026

Show notes

Defender Radio host Michael Howie is joined by colleagues Dr. Valli Fraser-Celin and Tijana S. (Wildlife Campaigns and Advocacy Manager at The Fur-Bearers) to talk about The Fur-Bearers' recent time at the Humane Canada Summit for Wildlife, two studies reviewed for our article, and how communication is a key aspect to wildlife coexistence.

SHOW NOTES

Episode artwork by Brittany Crossman / Getty

Learn more about Dr. Valli Fraser-Celin: Instagram: https://www.instagram.com/thelivesofwilddogs/ Articles on TheFurBearers.com: https://thefurbearers.com/tag/drvallifrasercelin/

Articles and Studies referenced:

Humane Canada recap – https://thefurbearers.com/blog/recap-humane-canadas-2026-summit-for-animals/

Study: Helping Landowners Live with Beavers – https://thefurbearers.com/blog/study-helping-landowners-live-with-beavers/

Why Nocturnal Wildlife Gets Less Love – https://thefurbearers.com/blog/why-nocturnal-wildlife-gets-less-love/

Surprising ways skunks help your ecosystem – https://thefurbearers.com/blog/surprising-ways-skunks-help-your-ecosystem/

Raccoons at Noon? Don't Panic. – https://thefurbearers.com/blog/raccoons-at-noon-dont-panic/

What's Next? Oct 27, 2025

Show notes

We want to look into the future for Defender Radio and The Switch – and that means hearing from you! We've put together a short (really) survey that will take fewer than 5 minutes and can help us know in which direction to go. It includes episode length/frequency, guest mix, accessibility, and more. Click here to open the survey now.

To show our appreciation, we're also offering a $100 Visa Gift Card that will be randomly drawn and awarded to a survey taker (must be 18+, live in Canada excluding Quebec, and provide name/contact information in the survey to participate).

Click here to get started or visit DefenderRadio.com/survey. Thank you.

SHOW NOTES:

Artwork by Enrico Staine / Getty Images

Take the survey at https://questionnaire.simplesurvey.com/f/s.aspx?s=dd56341d-a112-4f66-a58e-8fad38458f63&ds=zX2P67oC1l

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