why only human being is intelligent species on the earth? why other living beings are not intelligent as that of humans? why only one species exist as a intelligent life?
Answers
Answer:
Definitely yes.
In my opinion, the problem of environmental pollution is mainly due to overpopulation. Population explosion has led to deforestation, land degradation, water pollution and air pollution which have adversely affected the environment.
Answer:
According to the “cultural brain hypothesis,” humans evolved large brains and great intelligence in order to keep up with our complex social groups. We've always been a social species, and we may have developed our intelligence in part to maintain those relationships and function successfully in these environments.
There are two reasons. First, brain structure is more important than brain size, and human brains with their highly folded and complicated cortex can do things no other brains can. Second, relative size is more important than absolute size. ... The human ratio is highest at about 1:50.
Some computer models suggest life began as early as 4.5 billion years ago. A December 2017 report stated that 3.465-billion-year-old Australian Apex chert rocks once contained microorganisms, the earliest direct evidence of life on Earth.