The epithallus probably originated from cover cells, which are considered to be homologous structures.

He intended the comparative anatomy exhibits to demonstrate evolution through the presence of homologous structures.

The mackerel sharks (Lamnidae family) have a similar homologous structure to this which is more extensively developed.

Darwin discusses morphology, including the importance of homologous structures.

The homologous structure in bivalves (clams) is called the prodissoconch.

Making comparisons between species involves identifying what are known as homologous structures.

The theory of evolution explains these homologous structures: all four animals shared a common ancestor, and each has undergone change over many generations.

There are a number of other homologous structures shared between male and female reproductive systems.

We must make a second division, among homologous structures themselves.

These homologous structures indicate that organisms have had a common evolutionary origin.