Question

суть гипотезы происхождение предков человека на открытых пространствах саванн суть гипотезы околоводного происхождения предков человека

Answer 1

Точно сказать не могу, но попробую.

 

Учёные считают, что те признаки, которые есть у человека связаны либо с происхождением в саванне, либо  у воды.

 

Саванна: Человек стал выпрямляться, с целью увеличить свой обзор. Чем выше поднимешь голову- тем больше увидишь.

 

Водоёмы:Находясь в воде, человеку было необходимо выпрямиться, чтобы зайти поглубже. Вода сделала процесс распрямления более безболезненным. Нос у человека приспособлен для погружения в воду.

Answer 2

Hypotheses on the Origin of Human Ancestors

The hypotheses on the origin of human ancestors in open savannas and the aquatic ape hypothesis propose different scenarios for the evolution of early humans.

Savanna Hypothesis: The savanna hypothesis suggests that the ancestors of humans evolved in open grasslands, adapting to a life of hunting and gathering. This hypothesis emphasizes the role of bipedalism, tool use, and social behavior in the development of early humans.

According to this hypothesis, the transition to a savanna environment led to the development of traits such as walking upright, improved vision, and the use of tools for hunting and gathering. These adaptations were crucial for survival in the savanna environment and are considered key factors in the evolution of early humans.

Aquatic Ape Hypothesis: The aquatic ape hypothesis, also known as the "waterside hypothesis," proposes that human ancestors had a significant aquatic phase in their evolution. This hypothesis suggests that early hominids lived near or in water and that this aquatic environment played a crucial role in the development of human traits.

Proponents of the aquatic ape hypothesis argue that features such as bipedalism, subcutaneous fat, hairlessness, and certain aspects of human physiology can be explained by an aquatic or semi-aquatic lifestyle. They propose that these adaptations were advantageous for survival in a coastal or aquatic environment and influenced the evolution of early humans.

Both hypotheses offer different perspectives on the environmental factors that shaped the evolution of human ancestors. The savanna hypothesis emphasizes the role of open grasslands, while the aquatic ape hypothesis highlights the potential influence of aquatic environments on human evolution.

It's important to note that these hypotheses continue to be the subject of debate and ongoing research within the field of human evolution.