Colour patterns (eg irregular, spotted or barred forms) are widespread in the animal
kingdom, yet their potential role as signals of quality has been mostly neglected. However, a …

Chemical communication is probably the oldest, most ubiquitous form of information
exchange in the natural world, spanning all three domains of life. While excellent …

Males and females can be under different evolutionary pressures if sexual and natural
selection is differentially operating in each sex. As a result, many species have evolved …

Sexual selection is often considered as a critical evolutionary force promoting sexual size
dimorphism (SSD) in animals. However, empirical evidence for a positive relationship …

Schizocosa wolf spiders show tremendous diversity in courtship complexity, with different
species employing varying numbers of components within and across sensory modalities …

Sexual selection often shapes social behavioural activities, such as movement in the
environment to find possible partners, performance of displays to signal dominance and …

In a recent paper in Current Biology, Fennessy and colleagues [1] conclude that there are
four species of giraffe and that their numbers are declining in Africa. Giraffes (Giraffa …

Conspicuous color signals are commonly used by a wide diversity of animals to advertise
some specific aspect of their competitive ability. In particular, orange and red colors are often …

The brain plays a critical role in a wide variety of functions including behaviour, perception,
motor control, and homeostatic maintenance. Each function can undergo different selective …

The genus Calotes Cuvier, 1816 “1817” currently contains 25 species, which are widely
distributed in Asia and have been introduced in Africa and America. The genus includes …