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Difference between Species and Population

Difference between Species and Population

We often hear the terms “species” and “population” used interchangeably, but there is a big difference between the two. A species is a group of organisms that can interbreed and produce fertile offspring, while a population is simply all the members of a species that live in a certain area. For example, tigers are considered to be a single species, even though they are found in different parts of the world. However, the tiger populations in India and China are genetically different from one another because they have been isolated for so long. So although they are all tigers, they constitute separate populations.

What is Species?

Species is a Latin word, meaning “kind” or “appearance”. It is the basic unit of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, the difficulty of defining what constitutes a species can be seen in the numerous debates over what entities should be considered species. One way to determine what constitutes a Species by using the Species concept which helps to identify organisms that are members of the same Species. The Species concept is important because it allows us to communicate about organisms and understand their evolutionary history. There are different Species concepts, each with its own strengths and weaknesses, but all help us to understand what makes up a Species. By using the Species concept we can better understand the natural world and the diversity of life on Earth.

What is Population?

The population is generally defined as the number of individuals in a given area. Population density, on the other hand, is a measure of how many people live in a given area. The population can be determined by both census data and surveys. In addition, the population can be studied at both the national and global levels. Population growth is often impacted by factors such as war, disease, and natural disasters. As a result, understanding population trends is essential for both governments and businesses.

Difference between Species and Population

Species and population are often used interchangeably, but they actually refer to two different things. A species is a group of organisms that can breed and produce offspring that are also able to breed. A population is a group of individuals of the same species that live in the same area. Species are therefore a subset of populations. The main difference between species and population is that species is a reproductive unit while the population is an ecological unit. Species is used in the taxonomic classification of organisms while the population is used in environmental studies.

Another difference between species and population is that species have specific boundaries while populations do not have definite boundaries. Species can interbreed while populations cannot interbreed. Finally, species evolve over time while populations do not evolve. Species change over time because of the process of natural selection while populations do not change over time.


Species are groups of organisms that can interbreed and produce fertile offspring. Populations, on the other hand, are groups of organisms within a species that share a certain characteristic or live in the same area. In this post we’ve explored the difference between species and populations, two important concepts in biology. Hopefully, this has helped you better understand these terms and their applications.

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