Final answer:
The most intensively used part of a nonhuman primate's home range is known as the core range. These primates inhabit tropical and subtropical forests across different regions and display various behaviors and tool use, significantly influenced by their environment.
Step-by-step explanation:
All nonhuman primates live in defined places called home ranges. The most intensively used portion of the home range is the core range. Nonhuman primates, including species such as monkeys, apes, and lemurs, inhabit various forested regions across tropical and subtropical areas of the world. While their home range represents the area where they live and move around without significant resistant from other groups, the core range is a smaller area where they spend the majority of their time and conduct essential activities like feeding, sleeping, and social interactions.
These primates are found in regions such as Central and South America, Africa, and South Asia. Their habitats include diverse forest ecosystems like tropical rainforests, mangrove forests, and mountain forests. Within these areas, primates exhibit differing behaviors and tool use based on their environment. These behaviors are critical for understanding the evolutionary patterns of primates, including human evolution, and highlight their ability to adapt to various ecological niches.