Yes, children need to know if the dog lowers his tail, barks, snarls or growls, they should move away slowly and get an adult. However, recent empirical studies draw into question the conventional wisdom because they show that neuroimages themselves are not overly persuasive. It just propelled me into a field I already love with a terrific tailwind from these professors that believed in me. Then you will see that the people there are much more friendly.
After the Russian army was repulsed from Warsaw the idea was born to create a separate military unit composed of Jewish volunteers.