4. Hippopotamus
The contrast between a hippopotamus calf and an adult is astonishing. Although baby hippos are undeniably cute, their adult counterparts are deadly creatures. Each year in Africa, adult hippos are responsible for numerous human deaths. Despite being herbivores, these massive animals possess incredible strength and formidable teeth that can cause severe harm. Their territorial instincts and aggressive disposition make any encounter with hippos potentially lethal. It serves as a reminder that appearances can be deceiving, and even seemingly harmless animals can pose significant dangers in the wild.