Understanding the interface between humankind and wildlife is essential to averting infectious-disease outbreaks. We can't afford to ignore it anymore.
The global wildlife trade, agricultural intensification, deforestation and urbanization are bringing people closer to animals, giving their viruses more of what they need to infect us: opportunity.
Orangutans face a changing climate and are hemmed in by a growing human population using novel technologies to hunt them down. It's a situation they have been in before — 20,000 years ago.