Green-eyed tree frog
Frogs are born with legs that are good for hopping and special pads on their toes to help them climb. In comparison, toads have shorter legs, drier skin, and are less likely to live near water. Most frogs and toads are responsible for controlling the Earth's insect population, since their diet consists mostly of insects and spiders. However, the green eyed-tree frog is also a carnivore. As a tadpole, the frogs mostly consume algae and plants. Frogs have a moist and permeable skin layer covered with mucous glands, which enables them to breathe through their skin, not just their lungs. The layer of mucus that covers them also acts as a shield, protecting them from scratches. The reason frogs have large and protruding eyes is to make up for their lack of a neck. This eye feature allows them to see everything around them. The color scheme of the green-eyed tree frog is to camouflage them from predators. Frogs with bright colors are alerting predators of their poisonous nature.
Italian crested newt
Respiration in newts can take place through the skin, the lungs, or the buccal cavity, but newts mainly respire through the skin due to the fact that the buccal cavity and lungs are poorly vascularized. However, when "T. carnifex" are placed in poorly oxygenized water, they switch their primary respiratory surface from skin to lungs. Through further tests it was shown that "T. carnifex" can stay under water for long periods of time by using their skin to respire, but when they become active they must switch and usetilize their lungs or buccal cavity. Eddy and McDonald (1977) also discovered that many nsetilize their lungs to help regulate their buoyancy, similar to fish that use a swim bladder to aid in swimming.