Large mammals are animals that belong to the class Mammalia and are characterized by their significant size. Examples include elephants, whales, and bears. These animals typically have complex social structures, advanced communication skills, and long lifespans. They often inhabit diverse environments, from forests and grasslands to oceans. Many large mammals are herbivores, feeding on plants, while others are carnivores, preying on smaller animals. They play crucial roles in their ecosystems, such as maintaining vegetation balance and contributing to nutrient cycling. Conservation efforts are essential to protect these species from threats like habitat loss and poaching.