This World Wildlife Day, what are we willing to sacrifice for “progress”?

I was recently struck by an article in Mongabay, “The first amphibian to halt a hydroelectric dam now takes on the climate crisis.” It tells the remarkable story of a small toad in Brazil that, in 2014, halted the construction of a hydroelectric dam that would have destroyed its only habitat. It was the first documented case in the country of an amphibian stopping a project of such scale.

At first glance, the story feels like a breath of fresh air – a story where the little guy proves that even the smallest things can make a big difference.

While that is certainly a reading that ties things up into a neat bow, there is an alternative reading that unveils a more complicated truth. The toad stopping the dam is not a story of planning or conservation working as it should, but one in which a tiny amphibian suddenly carries a weight it was never meant to hold.

A single species triggering a narrow legal threshold at the last possible second makes for a gripping story, but in reality, represents the last lever available to conservation after a system has already failed to recognize and protect something irreplaceable early on.

This is what happens when we treat nature as an inevitable cost of development. Projects advance until the last possible moment with conservation only entering the conversation at the final stages, and often through the lens of a single species at risk forced to carry the fate of an entire ecosystem as a result.

The lesson from the toad is not just that small species matter, though they absolutely do. The lesson is also that when individual species are forced to occupy a reductionist role in our land-use planning – mainly as legal tripwires – it means that the planning systems are not set up to consider what truly matters, and to consider what we are willing to sacrifice in our desire for “progress.”

The journalist concludes by describing the toad’s story as “a mirror that reveals our mistakes but also our possibilities for change.” If this story is indeed a mirror reflecting our choices, here in Ontario the reflection is far less hopeful.

As Ontario continues to be one of the loudest voices in a broader national push to build new infrastructure, the idea that something small could stand in the way of development is often framed as absurd. The Premier captured this sentiment bluntly when he remarked, “There’s hundreds of thousands of people stuck in their cars, backed up from here to Timbuktu, and you’re worried about a grasshopper jumping across a highway.” The persistent implication is that economic benefits justify sacrificing the “tiny things.”

Setting aside the evidence that improving existing public infrastructure, not building new highways, is the most effective way to reduce congestion, a bigger issue remains.

What are we willing to sacrifice in the pursuit of economic and political goals? Who gets to decide what counts as expendable? And when in the planning process should these decisions be made? These questions grow more urgent as the twin crises of climate change and biodiversity loss accelerate. As their tangible and often catastrophic impacts on people and communities continue to grow, many of us inside and outside the scientific community understand that a future for humanity requires a healthy and livable planet.

Communities – human and non-human – thrive when we recognize the value of all their members, from the largest to the smallest. Often it is the smallest organisms that underpin our survival: bees that pollinate our food, coral polyps that build reefs supporting entire ecosystems, bacteria that keep our own bodies functioning. Which of these could we reasonably deem “insignificant” enough to sacrifice? The health of the natural world is inseparable from human health and wellbeing. One cannot exist without the other.

Despite this, the dominant narrative in Canada holds that mining critical minerals is essential for economic growth and national sovereignty, and that the costs are worth it. But history shows us that ignoring “small” things does not make them go away. It simply ensures they reappear later as conflict and cost. Those costs include damage to ecosystems, impacts on nearby communities, and public dollars spent subsidizing projects and cleaning up the mess afterward. Biodiversity protection enters the chat so late that, by then, communities are divided, proponents have invested heavily, and conservation becomes framed as an obstacle rather than a shared interest. Everyone loses, including the economy the project was meant to serve.

However, when we identify and protect irreplaceable places from the outset, we provide clarity and certainty for everyone: communities, governments, and industry alike.

We should be learning from the tiny toad in Brazil. Not just because it stopped a dam, but because it reveals a deeper truth. A system that depends on a single small species to halt a massive project is not a sign that the system is working.

However, when we design development around sustaining the natural world that sustains all of us, rather than bulldozing ahead for short-term gains that benefit a few at the expense of the many, spreading polarization and conflict in its wake, we create a future where everyone can thrive.

The smallest voices are often telling us the biggest truths. The question is whether we are willing to listen.