Reindeer (also known as caribou) are a member of the deer family ... but the major difference is that horns are made from a different substance called keratin, which is also found in hair and ...

I am always drawn to unique animals. You know, the kind of critters that are different from all others such as the Virginia opossum, which is the only marsupial in America. Or the osprey, a ...

As such, they are two different species within the same ... Reindeer have more prominent and denser antlers than whitetail deer. However, the critical difference is in sexual dimorphism.