Did you know that male peacock spiders (Maratus spp.) perform elaborate courtship displays to attract mates? In the coastal peacock spider (Maratus speciosus), the male extends his opisthosoma (the fan-like back) and orange setae (hair-like structures on either side) to produce a colorful display!
Sketch contributed by Lea Pollack
Source: Otto, J., & Hill, D. E. (2012). “Notes on Maratus Karsch 1878 and related jumping spiders from Australia, with five new species (Araneae: Salticidae: Euophryinae)”. Peckhamia, 103 (1), 42.