This post comes to PBS Nature from World Wildlife Fund (WWF). Views and opinions expressed in blog posts are those of the individuals expressing them and do not necessarily reflect those of THIRTEEN Productions LLC/The WNET Group.
In the dense tropical forests of Asia and Africa, a peculiar bird with a distinctive beak lives: the hornbill. This bird, with its vibrant plumage and iconic call, plays a role in shaping nature that few recognize— without it, the forests we depend on could falter.

© Don Getty
Hornbills are seed dispersers, or what we might call “farmers of the forest.” They consume a variety of fruits, including those with large seeds that few other animals can handle. As they travel across the forest canopy, they excrete these seeds far from the parent tree, providing the seeds with a chance to grow without competition. In fact, some tree species rely almost exclusively on hornbills for this essential service.
But why does this matter to us?
Nature benefits people in profound ways — many of which are invisible to us. Forests act as the lungs of our planet, regulating carbon and producing oxygen. They filter water, stabilize soil, grow food and supply resources used to make medicine. Yet, it’s not just the trees themselves that provide these services. Animals actively shape ecosystems, through their roles in food webs and in engineering soil, water and vegetation structure, ensuring ecosystem resilience and productivity.
The hornbill’s work as a seed disperser is a perfect example of this. Without them, the forest would lack the regeneration it needs to thrive. Over time, this would impact the forest’s ability to store carbon and provide resources. Protecting forests without considering the wildlife that maintains them is like building a house but forgetting the foundation.
Let’s consider a few other species that may not be quite as glamorous as the hornbill, that may instead rank more toward irritating or even intimidating, but that are, in fact, vital to maintaining healthy ecosystems:
- Bats: Often feared or seen as nuisances, bats are some of nature’s most effective pest controllers and pollinators. A single bat can eat thousands of insects in a night, reducing the need for chemical pesticides. Meanwhile, fruit bats pollinate crops like bananas, mangoes, and durians, playing a critical role in global food security.

© Ronald Petocz / WWF
- Beavers: Although their conspicuous habit of downing trees can seem aesthetically “messy” to some, beavers transform landscapes in ways that benefit entire ecosystems. By building dams, they create wetlands that serve as habitats for countless species, improve water quality by filtering sediments, and help regulate water flow to prevent floods and droughts.

© Bruce D Taubert
- Sharks: While often vilified, sharks are apex predators that keep marine ecosystems in balance. By preying on sick or weak individuals, they prevent overgrazing of vital habitats like seagrass beds and coral reefs, which in turn support countless other species.

© naturepl.com / Mark Carwardine / WWF
Sadly, many of these species, including the hornbill, are declining. Habitat destruction, hunting, and climate change threaten their survival. With fewer individuals to perform their key roles, the ecosystems that wildlife support are also at risk. It’s a sobering reminder that saving any ecosystem means saving the interconnected web of life within it.
Wildlife is nature, and wildlife shapes nature. From hornbills to bats, dung beetles to sharks, every species has a role in maintaining the natural systems that sustain humanity. To protect these services, we must think beyond conserving landscapes. We need to champion the species that breathe life into these ecosystems.
Investing in wildlife conservation isn’t just about saving individual animals—it’s about ensuring forests, oceans, and fields continue to provide clean air, fresh water, and food for generations to come. So, next time you hear the honk of a hornbill or see a beavers dam in a stream, remember: behind every thriving ecosystem is a team of unsung heroes, working tirelessly to keep nature alive.
Together, let’s protect nature’s technicians and the incredible roles they play. Their future is our future.
The post The Hidden Benefits We Get From Wildlife appeared first on Nature.