Aposematic coloration plays an important role for species, as it serves
as a clear signal of danger to visually-oriented predators regarding the
potential toxicity of individuals displaying this condition. However,
considerable gaps remain on this subject, and, primarily, empirical data
are lacking to support robust discussions on the topic. The harlequin
frog Atelopus hoogmoedi exhibits a range of aposematic colors across
different populations, yet we still do not know how this characteristic
was selected throughout evolution nor what the impacts of this
characteristic are on the species' biology, ecology, and behavior.
Considering that this topic deserves further in-depth studies,
particularly due to being one of the most threatened groups of
vertebrates and still lacking research, we present possible insights to
guide future investigations on this subject.