Definition

The process in biology where a feature or structure is used for a different purpose than it was originally developed for through evolution.

Example

The wings of some flightless birds are an example of exaptation, as they evolved for different uses than flying.

Conversation

Have you ever heard of the term exaptation?

Yeah, I think it's when something evolves for one purpose but ends up being used for something else.

Exactly! It's fascinating how some features can adapt in unexpected ways.

I know, right? Nature is full of surprises like that.

Synonyms & Antonyms

Root Explanation

Exaptation is formed from "ex-" (meaning out of or from) and "aptare" (meaning to fit or adjust). The term describes a trait that has been adapted for a purpose different from the one for which it was originally developed.

Memory Tip

Think of a trait that has been 'fitted' ('aptare') for a new purpose 'out of' ('ex-') its original function.

Visually Confused Words