Dangerous animals are species that can pose a threat to humans or other animals due to their size, strength, venom, or aggressive behavior. Examples include large predators like lions and bears, which can attack if they feel threatened or are protecting their young. Venomous creatures like snakes and spiders can deliver bites that may cause serious injury or even death. In addition to these, some animals are dangerous because of their diseases. For instance, mosquitoes are known to transmit illnesses like malaria and dengue fever. Understanding these animals helps people take precautions to avoid dangerous encounters in the wild or in urban areas.