Explain why entering an interglacial period resulted in an increase in biodiversity on earth.

The inter-glacial period is usually defined as the warmer period that occurs between the two consecutive glacial periods. It generally lasts for about thousands of years and is marked by the presence of relatively high temperature, with a little increase in the sea level.

This inter-glacial period provides a favorable climatic condition that allows animals and plants to flourish and undergo evolution. This evolution takes place over thousands of years and helps in the increasing biodiversity on earth in a large scale.

The earth is currently in an interglacial period, which is commonly known as the Holocene, where abundant species are found to be distributed all over the world.

Thus, entering an inter-glacial period results in increasing biodiversity.