Why are human beings who look so different from each other in terms of size, colour and looks said to belong to the same species?
A species is a group of organisms that have similar characteristics and can reproduce to form fertile offspring.
- Human beings in different parts of the world look different and have different genetic makeup.
- But they can still reproduce with each other and produce fertile offspring.
- Thus, due to the absence of reproductive isolation (inability to reproduce), they belong to the same species, in spite of their differences.