Why was life difficult for early humans

The human lineage was not always at the top of the food chain. Our ancestors met astonishing challenges in their surroundings, and were susceptible to disease, injury, and predators. Environmental change – one of the ongoing challenges to survival – created both risks and opportunities in the lives of early humans.

Scientists have pieced together an early human habitat for the first time, and life was no picnic 1.8 million years ago. Our human ancestors, who looked like a cross between apes and modern humans, had access to food, water and shady shelter at a site in Olduvai Gorge, Tanzania.

Although all earlier hominins are now extinct, many of their adaptations for survival—an appetite for a varied diet, making tools to gather food, caring for each other, and using fire for heat and cooking—make up the foundation of our modern survival mechanisms and are among the defining characteristics of our species.

What challenges would humans have faced if they lived on the early Earth? walking in molten lava, breathing in carbon dioxide and methane, ducking falling meteorites and asteroids, and will be throwing up due to the high radiation that the planet contain.