I think it have to do with the rich and the poor the farmers or sum...
due to the rise of trophy hunting the which hunting animals to have on display some animals have been over hunted which why we have endangered species.
Answer:
i believe it is tied knots, since they had to memorize messages and run it across a trail
The answer would be : by comparing the DNA from the test using the Kastle-Meyer test. Kastle-Mayer test is used to detect possible presence of hemoglobin in the DNA. This results could be compared to the Law enforcement's database to find out the one's who is involved in the crime scene