Grey wolf © Don Johnston
Toronto, December 4, 2025 | Traditional territories of the Mississaugas of the Credit, the Anishinaabeg, the Haudenosaunee, and the Wendat – Published quarterly by Ontario Nature, ON Nature brings readers closer to nature. The magazine is an authoritative source of environmental content that inspires and informs.
In the current issue, read about:
The Vanishing Icon
Boreal caribou populations continue to decline in Ontario. Can a new agreement help them recover?
By Conor Mihell
Remembering the Queen Bee
Sheila Colla was a renowned bee expert and a tireless advocate for conservation. With her recent passing, people who knew her reflect on the life, passions and impact of a beloved scientist.
By Carol Toller
The Ma’iingan Way
A study in northern Ontario has revealed the relationship between wolves, habitat connectivity and humans on the land—highlighting the power of collaboration in conservation.
By Andrés Jiménez Monge
Last Word
Time to dig in on aggregates.
By Anne Bell
Contact
- John Hassell, ON Nature editor
- johnh@ontarionature.org, 416-444-8419 ext. 269.
ON Nature, a nature and environment magazine, is published quarterly by Ontario Nature.
A charitable organization, Ontario Nature represents 9,500 members, 130,000 supporters and 150 member groups. Ontario Nature’s mission is to protect wild species and wild spaces through conservation, education and public engagement.
ON Nature is a member-supported magazine. You can subscribe for just $50 per year and we will mail you a printed version of the magazine. Your subscription will help fund Ontario Nature’s projects to protect wild species and wild spaces. If you’re already a subscriber, thank you!
Advertising Opportunities: Spring 2026 ON NATURE Magazine
The Myriad Mysteries of the White-throated Sparrow
Four sexes. Multiple colour patterns. A changing song. White-throated sparrows may be ubiquitous (at least for now), but they are far from commonplace.
By Julia Zarankin
Big Moths in Big Trouble
Sphinx moths and other large moth species have been declining for decades. How can this population trend be reversed?
By James Kamstra
Power Grab
The Government of Ontario’s new “special economic zones” could turn protected areas and vulnerable habitats into mines and subdivisions without environmental assessment or regulatory oversight.
By Brian Banks
Last Word
Reflections of a blind birder.
By Christine Malec
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About
Ontario Nature protects wild species and wild spaces through conservation, education and public engagement. A charitable organization, Ontario Nature represents 9,500 members, 130,000 supporters and 150 member groups from across Ontario.