Here's why:
* Stability: This wide stance provides a strong base of support for the giraffe's long, heavy neck as it bends down to reach the water. This helps prevent the giraffe from becoming unbalanced and falling over.
* Accessibility: Spreading the legs allows the giraffe to get its head down to the water without needing to kneel or lie down, which would be very difficult and potentially dangerous for such a large animal.
It's important to note that giraffes are very graceful and efficient drinkers, even with their unusual drinking posture!