The greatest diversity of animal and plant species occurs in tropical moist forests.

Tropical moist forests, also known as tropical rainforests, are renowned for their incredible biodiversity. These forests are characterized by high temperatures, abundant rainfall, and year-round humidity. They occur in tropical regions near the equator, such as the Amazon rainforest in South America and the Congo rainforest in Africa.

Tropical moist forests support a wide variety of animal and plant species, including a multitude of endemic species found nowhere else in the world. The warm and stable climate, coupled with abundant rainfall, provides ideal conditions for plant growth, resulting in dense vegetation and a vast array of plant species.

These forests are home to an immense diversity of animal species, ranging from insects and reptiles to birds and mammals. They provide habitat for iconic species like monkeys, sloths, jaguars, toucans, and countless others. The complex structure of the forest, with multiple canopy layers and diverse microhabitats, supports specialized species and fosters intricate ecological relationships.

While other ecosystems, such as temperate deciduous forests, deserts, savannas, or heavily polluted rivers, may have their own unique species and adaptations, the tropical moist forests stand out as the most biologically diverse and species-rich ecosystems on Earth.