Many fish species evolved parts of their fins into sharp, spiny, needle-like elements -- called fin spines -- that function to protect the fish against predators. Such spines have evolved ...
Two males of the cichlid fish Astatotilapia burtoni, the model organism used to study spine and soft-ray development in Hoech et al. (Credit: Joost Woltering) Two males of the cichlid fish ...
The human fingertip is a finely tuned sensory machine, and even slight touches convey a great deal of information about our physical environment. It turns out, some fish use their pectoral fins in ...