Figure 1 . Morphology and life history responses of C. cornuta under fish and Chaoborus larvae predation risks. The dark line with asterisks indicates significant differences between treatments with and without fish predation risks (*P < 0.05, **P < 0.01 and ***P < 0.001). The upper and lower case letters indicate differences among treatments of absent and present Chaoborus larvae predation risks, respectively. The error bar indicates the standard error.