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rogs are the most famous amphibians around. Frogs begin their life with gills, as frogs grow they mature into adults and they develop lungs like you and me. Besides that they just hop around and eat flies. Chains-and-Charms.com has 14k gold frog charms which are an excellent addition to charm bracelets. Check out the skillful craftsmanship on our gold and silver frog charms.
Frog bones form a growth ring every year when the frog is hibernating. Scientists can count these rings to discover the age of the frog. Frogs absorb water through their skin so they don't need to drink. Under the water, a frog's eyes are protected by an extra transparent eye lid called a nictitating membrane. Frogs have long back legs and webbed feet for jumping and swimming. Frogs can live equally well in water or on land. A frog can change the color of its skin depending on its surroundings. Frogs range in size from 1cm to 30cm long. Frogs use a variety of ways to attract a mate such as courtship calls, body color and limb movements.
Frogs cannot live in the sea or any salt water. The wax frog retains moisture in dry weather by producing wax from its skin and coating itself in it. In recent years a painkiller with 200 times the power of morphine was found in the skin of a frog. Glass frogs are so called because they are almost see-through from below, due to the lack of pigment in the skin of their undersides. Some frogs can survive in conditions well below freezing. The Grey tree frog for example can survive even though its heart stops. It does this by making its own antifreeze which stops its body from freezing completely. |