Why is the expansion of the species range considered a sign of biological progress?

1) the variety of environmental conditions that ensure the reproduction and development of individuals of the species increases; 2) expanding opportunities for nutrition, improving the food supply; 3) intraspecific competition weakens.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.