Question

In some animals, males and females look very different from each other. For example male pheasants are bigger and brightly coloured while the females are smaller and dull in colour. In which of these animals do the males and females look the most differ from each other?

Answer 1

Answer:

Sexual dimorphism is the condition where the two sexes of the same species exhibit different characteristics beyond the differences in their sexual organs. The condition occurs in many animals and some plants. Differences may include secondary sex characteristics, size, weight, colour, markings, and may also include behavioral and cognitive differences. These differences may be subtle or exaggerated, and may be subjected to sexual selection and natural selection. The opposite of dimorphism is monomorphism.