Ezra 
Frogs have skin composed of thin membranous tissue that is quite permeable to water and contains a large network of blood vessels. They use this skin to breathe, and also to absorb water to rehydrate. Their skin does not just absorb oxygen and moisture though, many chemicals used in the treatment of tap water can also be absorbed. Chlorine, … Read more
Like humans, frogs need water to survive. Water plays a vital role in the regulation of frogs’ body fluids, and allows their bodies to keep up with important functions, such as getting rid of wastes and bringing nutrients to cells. But how do frogs drink water? Frogs do not drink water through their mouths like … Read more
Frogs are intriguing creatures that attract the curiosity of many people. There are also many misconceptions about these animals. Most frog species have lungs which they use to breathe air. In addition to lungs, frogs also breathe through their skin and thin membranes in their mouth and throat. Only one out of more than 7,500 … Read more
Most frogs lay eggs, which then hatch into tadpoles that develop and metamorph into adult frogs over time. In each of these life stages, frogs will use many different organs for gas exchange. Frogs have gills as tadpoles, which are lost when the tadpoles reach the froglet stage of their development. As adults, frogs do not have … Read more
Most frogs (not all) start their lives as tiny tadpoles. Tadpoles are very different from adult frogs; this is because they’re adapted for a fully aquatic life, while adult frogs are adapted for a semi-aquatic, or mostly terrestrial life (depending on the species). Tadpoles breathe through external gills when they first hatch. Over time, the … Read more
Most frogs (not all), start their lives as tiny tadpoles adapted for a fully aquatic life. Over time, the tadpoles will grow legs, lose their tails, and metamorph into adult frogs. Tadpoles have external gills when they hatch. At about 4 -6 weeks old, the gills are gradually covered by skin, forming an opercular chamber … Read more