In archaeology, a biofact (or ecofact) is organic material found at an archaeological site that carries archaeological significance. Biofacts are natural objects found with artifacts or features such as big horn sheep bones, charcoal, plants, and pollen. Biofacts are handled by humans; however, once manipulation occurs, biofacts transform into artifacts. Biofacts reveal how people respond to their surroundings.

In archaeology, a biofact (or ecofact) is organic material found at an archaeological site that carries archaeological significance. Biofacts are natural objects found with artifacts or features such as big horn sheep bones, charcoal, plants, and pollen. Biofacts are handled by humans; however, once manipulation occurs, biofacts transform into artifacts. Biofacts reveal how people respond to their surroundings.