05/08/2022
The integument of frogs is rich in glands, the skin secretions of some species are extremely poisonous. The color of frogs varies from camouflage brown, greenish and gray to the brightest red, yellow and black colors, as a rule, signaling (or mimicking) poisonousness. The skin of frogs is permeable to water, but various adaptations allow them to avoid excessive loss of moisture during a terrestrial lifesty
