Definition
*Hydrodamalis* is a genus of extinct sirenian marine mammals. The most well-known species is *Hydrodamalis gigas*, also known as Steller's sea cow. These enormous herbivores were found in the Bering Sea. They were hunted to extinction within 27 years of their discovery by Europeans. *Hydrodamalis* serves as a stark reminder of the impact of human activity on wildlife. They're the ultimate example of why conservation matters. ðĨ