Australopithecus afarensis had the ability to walk on two legs (bipedalism), similar to humans. They were likely capable of climbing trees and had sharp incisors for biting and chewing a varied diet of plants and possibly meat. Additionally, they had relatively small brains compared to modern humans.

Homo erectus likely stayed warm by creating and using fire for warmth, cooking, and protection. They also may have used animal skins and furs for additional insulation. Their more robust physique compared to modern humans may have also helped them regulate body temperature in colder climates.

"Homo sapient" is Latin for "wise man" and is used to refer to the human species, emphasizing our intelligence and capacity for wisdom and knowledge.

Force arises whenever two objects interact. This force can either attract or repel the objects depending on factors such as their masses and distances apart.

Homo erectus likely had fears related to survival such as predators, lack of food, or natural disasters. They may have also had fears about social interactions within their group or with other groups. The specific fears would have varied depending on the individual and the environment they lived in.

Homo erectus is believed to have spread from Africa to parts of Europe and Asia, with fossil remains found in regions such as Java, China, and Georgia. Their spread is seen as an early example of human migration out of Africa.

Australopithecus were a group of early human-like species that walked upright and had small brains. Homo habilis were the first to use stone tools. Homo erectus had larger brains and more sophisticated tools. Homo sapiens are modern humans with complex language, advanced tool-making abilities, and symbolic thinking.

Homo erectus likely found occasions such as successful hunts or food gatherings, successful tool-making, or the discovery of new resources to be special. They may have also valued social gatherings, ceremonies, or rituals that fostered group cohesion and community bonds.

Fossil sites of Homo erectus have been found primarily in Africa and Asia. Key locations include sites in East Africa (such as Olduvai Gorge in Tanzania) and in East and Southeast Asia (such as Zhoukoudian in China and Sangiran in Indonesia).

Factors such as geography (natural barriers, resources), climate (temperature, precipitation), political stability, economic opportunities, and social networks could have influenced migration routes in various environments. For example, mountains could impede movement, while fertile land might attract migrants.

Homo erectus had stone tools, such as hand axes and cleavers, as well as the ability to control fire. They likely used these tools for hunting, cutting plants, and processing food. Their use of fire may have helped them cook food, stay warm, and provide protection from predators.

It is believed that Homo erectus did not use the bow and arrow, as this technology is thought to have emerged later with Homo sapiens. Homo erectus likely used simpler tools like spears and stones for hunting and defense.

The use of spoken language allowed homo erectus to communicate more effectively, coordinate group activities such as hunting, and pass down knowledge and skills to future generations. This gave them a competitive advantage in adapting to a wider range of environments and exploiting available resources more efficiently than earlier forms of humans.

Early humans used stone tools because stone was abundant and could be easily shaped into different types of tools for hunting, cutting, and crafting. Stone tools were essential for survival, enabling early humans to procure food, build shelters, and create other essential items for daily living.

Donald Johanson's discovery of Lucy in 1974 was significant because Lucy was one of the most complete hominid fossils ever found, providing important insights into human evolution. This discovery supported the theory that early hominids walked upright and lived in both trees and on the ground. Lucy's age and anatomical features helped scientists understand the transition from ape-like ancestors to early humans.

Early humans relied on nature for raw materials to create tools such as rocks for cutting, bones for shaping, wood for handles, and fibers for binding. They had to observe and understand the natural world to identify and manipulate the resources available to them in order to fashion tools for hunting, defense, and other essential activities for survival. This deep connection to nature influenced their innovative abilities and problem-solving skills in toolmaking.

Homo erectus lived approximately 1.9 million to 70,000 years ago in Africa, Europe, and Asia.

Studying Homo erectus offers insights into human evolution, as they were early ancestors that exhibited key developments such as bipedalism and the use of tools. Understanding their behavior, anatomy, and migration patterns can provide valuable information about the origins and adaptations of our species. By studying Homo erectus, researchers can better comprehend the evolutionary processes that have shaped modern humans.

Estimates suggest that Homo erectus individuals typically weighed between 70-150 pounds (32-68 kg), with males generally being larger and heavier than females. These estimates are based on fossil evidence and comparisons with modern human body sizes.

Homo erectus, like most hominids, had the trait of bipedalism, which means walking on two legs. This adaptation allowed them to cover long distances efficiently, carry objects, and see over tall grass for hunting and gathering.

Archaeologists found the earliest Homo erectus remains mainly in East Africa, particularly in locations such as Olduvai Gorge in Tanzania and Koobi Fora in Kenya. These sites have provided significant insights into the evolution and behavioral patterns of this early human ancestor.

The fossils of Java Man, now classified as Homo erectus, were discovered by Eugène Dubois in 1891-1892 on the Indonesian island of Java. Dubois, a Dutch anatomist and paleontologist, made this significant discovery in the Trinil area during his search for human ancestors in Southeast Asia.

Homo erectus migrated from Africa to other continents, including Asia and Europe. Fossil evidence suggests they inhabited diverse environments ranging from open grasslands to wooded areas. Their ability to adapt and exploit various habitats contributed to their success as a species.

Homo sapiens are considered highly adaptable compared to other species due to our cognitive abilities that enable us to innovate, problem-solve, and alter our environment to suit our needs. Our capacity for cultural learning and language has allowed us to inhabit various environments globally, demonstrating a high level of adaptability.

There is no direct evidence that Homo erectus had a formal system of government. This early species of human ancestors, believed to have existed between 1.9 million and 70,000 years ago, likely lived in small social groups with simpler forms of organization based on kinship and cooperation for survival.