Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Beak sizes refer to the variations in the size, shape, and structure of bird beaks. Birds with different beak sizes have adapted to feed on specific types of food sources.
The process by which individuals with traits that are better suited to their environment survive and reproduce more successfully than those without such traits.
Feeding Niches: Specific roles or positions occupied by organisms within an ecosystem based on how they acquire and utilize resources.
Evolutionary Adaptation: Changes in an organism's physical or behavioral traits over generations that help them survive and reproduce in their environment.