Human beings have existed for a long time. We started as primitive creatures merely seeking survival over all other life forms and now, we reached heights in intelligence and technology that would seem strange and alien to people that lived in the 20th century let alone cave men. Human beings are curious in nature. Asking questions is one of many things differentiating us from animals, in fact Joseph Jordania, an Australian professor, said while talking about the limitations of animals such as Koko the gorilla learning the using sign language, that the ability to ask questions is the central element that distinguishes human and animal cognitive abilities.