Question

Define Adaptive Radiation and give examples like Darwin's Finches.

Hint:

Adaptive radiation explains how a {single ancestral species can evolve into many species} adapted to different ecological niches.

Answer 1

Concept: Adaptive radiation is an important concept in evolution where organisms originating from a common ancestor evolve into multiple species adapted to different environments or ecological niches.
Step 1:Definition of Adaptive Radiation Adaptive radiation is the evolutionary process in which a single ancestral species gives rise to several new species, each adapted to different habitats, food sources, or ecological conditions.
Step 2:Darwin's Finches Example One of the most famous examples of adaptive radiation is observed in the Darwin's finches of the Galápagos Islands.

• Charles Darwin observed several species of finches on different islands.
• These finches evolved from a common ancestral species.
• Over time, they developed different beak shapes and sizes adapted for different types of food such as seeds, insects, and nectar.

Thus, the diversification of finches into multiple species is an example of adaptive radiation.
Step 3:Other Examples

• Australian marsupials evolving into different forms such as kangaroos, koalas, and wombats.
• African cichlid fishes diversifying into many species with different feeding habits.