Animals often need to signal to attract mates and behavioural signalling may impose
substantial energetic and fitness costs to signallers. Consequently, individuals often …

The ability to detect and avoid predators has been suggested as one of the main drivers for
behavioral lateralization. This is supported by studies reporting that animals from high …

Asymmetries in bilateral organisms attract a lot of curiosity given that they are conspicuous
departures from the norm. They allow the investigation of the integration at different levels of …

Male guppies display an outstanding diversity of color patterns which is formed as a result of
a complex interplay between sexual selection, predation, and other environmental factors …

Pelvic fins are a characteristic structure of the vertebrate Bauplan. Yet, pelvic fin loss has
occurred repeatedly across a wide diversity of other lineages of tetrapods and at least 48 …

How do female sexual preferences for male ornamental traits arise? The developmental
origins of female preferences are still an understudied area, with most explanations pointing …

Alternative mating behaviour, personality traits and morphological characters are predicted
to be correlated. Bolder, larger and more colourful males are expected to preferentially court …

The question of why variation is maintained in personality traits is an evolutionary puzzle.
According to the condition‐dependence hypothesis, such traits depend on condition, which …

Early social conditions are vital for the establishment of future social interactions. Less,
however, is known about how differences in early social conditions contribute to the process …

Highlights•Guppies (invasive species) were more often found in mixed-than same-species
shoals.•In mixed-species shoals, a guppy's nearest neighbour was more often a …