This document discusses how AI and data science can help protect biodiversity by detecting, identifying, and counting animals using computer vision models. It provides examples of projects that use deep learning to identify salmon from underwater videos, classify species from photos shared on iNaturalist, estimate penguin counts from images, and detect elephants spotted via aerial surveys to help conservation efforts. The document emphasizes the importance of having adequate training data and combining automated methods with human inputs and validation to accurately protect threatened species.