English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

![Graphic][1] As the days begin to lengthen and winter recedes for yet another year, many birds dust off their most glamorous plumage to attract a mate. Males often opt for ostentatious displays while females tend to the dowdier end of the spectrum. But what factors regulate the dramatic

Testosterone regulates scarlet plumage in red-backed fairy-wrens