Detection Dogs Can Identify Trafficked Wildlife in Sealed Shipping Containers with 98% Accuracy

A groundbreaking study published in Conservation Biology has demonstrated that detection dogs can identify trafficked wildlife hidden inside sealed shipping containers by analyzing tiny air samples extracted from the containers — with nearly 98% accuracy.

The four-year research project, conducted in collaboration with CMA CGM, the world's third-largest shipping company, addresses a critical gap in combating wildlife trafficking. The illegal wildlife trade is estimated to be worth $20 billion annually, and shipping containers are a major vulnerability. Millions of containers move through global ports each year, but only a small fraction can be physically inspected.

“The four-year research project, conducted in collaboration with CMA CGM, the world's third-largest shipping company, addresses a critical gap in combating wildlife trafficking.”

The innovative approach brings the scent to the dog rather than the dog to the container. A portable device extracts air samples from sealed containers, which are then presented to trained detection dogs. This method allows many more containers to be screened efficiently and safely, without disrupting port operations or putting dogs in unsafe environments.

Detection dogs are already widely used by customs agencies, but their ability to screen sealed containers at scale has been limited. Containers are often stacked high, inaccessible, or in environments unsuitable for working dogs. The air extraction methodology overcomes these practical barriers.

The researchers tested the dogs across various scenarios, including different container sizes and concealment methods. The dogs maintained their high accuracy regardless of these variables, demonstrating the robustness of the approach.

Wildlife trafficking threatens biodiversity worldwide and is linked to organized crime networks. This technology could be deployed at major ports globally to significantly increase the interception rate of illegal wildlife shipments, helping protect endangered species from exploitation.