What feature of the mature male nilgai might have confused early observers regarding its relationship to cattle?

Answer

Its substantial size, approaching the stature of smaller cattle breeds.

The substantial size of the male nilgai, reaching shoulder heights near 5 feet, is significant for an antelope and may have contributed to it being mistaken for bovine species.

What feature of the mature male nilgai might have confused early observers regarding its relationship to cattle?
animalmammalclassificationungulateNilgai