A lot of people are aware that species and population are different from each other but they are not sure exactly how different these things are. Species is known to be a group of individuals that are similar to each other.
These species will have the tendency to interbreed with each other so that they can increase their population. Obviously, population refers to the number of individuals that are available for a specific group of species.
For example, the population may refer to the number of people that are available in one country or it may say the number of people who inhabit a certain island. The ones who are living on the island are the species.