From the infinite stretch of the universe, to the microscopic miracle of copper particles -- sometimes making sense of things that are on different scales of magnitude than we are can be hard to imagine. I use scale in the broadest of terms here.
Most people can't see by any stretch of the imagination how copper particles are akin to rhino milk. However, we assure you that there are similar characteristics betwixt the two.
Did you know that rhino milk is pink? It is almost the same as regular milk besides the color and it is also high in calories. The calorie count being about 500 per cup as compared to cow milk. Cow milk popular with humans offers the approximate following calorie counts per cup; whole = 150, 2% fat = 125, and 1% fat = 100. That makes sense as a baby rhino would need more calories than a baby cow.