What Are Pheromones?
Pheromones are chemical substances that are secreted from the outside by one person and taken up by another person of the same species. Although all animals are known to produce them, their existence in humans … Read more
insects
What Is Dengue Fever?
Dengue fever is a mosquito-borne viral infection that can cause fever, headaches, muscle aches, dizziness, nausea, vomiting and other symptoms. Although most cases of dengue are relatively mild, even a mild infection can cause painful … Read more