# Evolution of treefrogs' calls in tropical islands might be under directional selection

> Research article (Journal of Zoology, 2020) · cited 10× · AI/ML

**Wikidata**: [openalex:W3030413270](https://www.wikidata.org/wiki/openalex:W3030413270)  
**Source**: https://4ort.xyz/entity/evolution-of-treefrogs-calls-in-tropical-islands-might-be-under-directional-selection