Figure 21-1
​


​
During the____________, there was an explosive radiation of birds, which acquired adaptations for different habitats.

Explosive Radiation

Rapid evolutionary diversification within a lineage, resulting in the formation of many new species.

Birds

Warm-blooded, feathered vertebrates that lay eggs, characterized by their ability to fly, although some species are flightless.

Adaptations

The process by which organisms adjust to changes in their environment, often leading to evolutionary changes that improve survival and reproduction.