Island Origin Hypothesis

• The island origin hypothesis suggests that the ancestors of humans evolved on an isolated landmass, possibly due to sea level changes.
• The island origin hypothesis suggests that the ancestors of humans evolved on an isolated landmass, possibly due to tectonic activity.
• Homo erectus is considered by some scientists as the first human species to migrate out of Africa.
• The presence of similar species on nearby islands, but with slight variations, known as island biogeography patterns, further supports the Island Origin Hypothesis.
• Some evidence supports the idea that Homo erectus may have been able to control fire, which could have provided warmth, cooked food, and improved their social lives.
• Island populations are often small and have limited resources, leading to genetic drift and adaptation through natural selection.
• Evidence supporting the island origin hypothesis includes similarities between human DNA sequences across different regions and the presence of shared traits among indigenous peoples.
• The island origin hypothesis suggests that early hominins had small brains relative to their body size, which may have allowed them to conserve energy and survive in resource-poor environments.
• Some evidence supports the idea that Homo erectus may have been capable of long-distance migration.