Therefore our reliance upon this second observer has its inherent challenges. Attempts that the animals make to communicate are often misinterpreted and anthropomorphized. Here is a place where keen observation without conclusion is paramount. Border collies are herding animals, even if it's a UPS truck rather than a sheep. Other important differences in working with animals include anatomical and functional variations.
Birds have fewer vertebrae while other species have more.
This makes the location of points an interesting challenge. Among other issues related to safety, handling and restraint brings up issues of personal danger. As one of our teachers put it, a horse can kill you without meaning to and before you know it. Proper instruction and care in this area is required for the security of all concerned. In some cases, treatment with needles may simply be too dangerous.