1. 1. AMPHIBIANS Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Amphibia FLOURIE MAE O. OJALES
2. 2. What are Amphibians? Amphibians are a class of animals like reptiles, mammals, and birds. They live the first part of their lives in the water and the last part on the land. When they hatch from their eggs, amphibians have gills so they can breathe in the water. They also have fins to help them swim, just like fish. Later, their bodies change, growing legs and lungs enabling them to live on the land. The word "amphibian" means two-lives, one in the water and one on land. FLOURIE MAE O. OJALES
3. 3. Where do they live? Amphibians have adapted to live in a number of different habitats including streams, forests, meadows, bogs, swamps, ponds, rainforests, and lakes. Most of them like to live in or near water and in damp areas. FLOURIE MAE O. OJALES
4. 4. What do they eat? Adult amphibians are carnivores and predators. They eat a variety of food including spiders, beetles, and worms. Some of them, like frogs, have long tongues with sticky ends that they flick out to catch their prey. The larvae of many amphibians mostly eat plants. FLOURIE MAE O. OJALES
5. 5. The Class Amphibia (or amphibians) includes three Orders: Anura (frogs and toads) about 5,800 species Caudata or Urodela (newts and salamanders) about 580 species Gymnophiona or Apoda (caecilians) about 170 species FLOURIE MAE O. OJALES
6. 6. General Characteristics of Amphibians They are ectotherms (often referred to as cold- blooded). This means that amphibians do not hold their body temperature constant like mammals, but their internal temperature depends upon that of the surrounding environment. Amphibians have soft, generally moist skin without scales. Their eggs do not have shells and so must be laid in water or a damp environment to keep from drying out. Amphibians go through a two-stage life cycle. When an amphibian hatches it is in a gilled larval form. In frogs and toads this larva is called a tadpole. After a few weeks or months the larvae transform into the adult form, however it may still take a few years to become mature. FLOURIE MAE O. OJALES
7. 7. Amphibians are important and beneficial in many ways: They play an important role in nature as both predator and prey, sustaining the delicate balance of nature. They eat pest insects, benefiting successful agriculture around the world and minimizing the spread of disease, including malaria. The skin of amphibians has substances that protect them from some microbes and viruses, offering possible medical cures for a variety of human diseases, including AIDS. Frogs have had a special place in various human cultures for centuries, cherished as agents of life and good luck. FLOURIE MAE O. OJALES
8. 8. Fun Facts about Amphibians Most amphibians have thin, moist skin that helps them to breathe. Amphibians are considered vertebrates as they have a backbone. Frogs swallow their food whole. The size of what they can eat is determined by the size of their mouths and their stomach. Frogs cannot live in salt water. All amphibians have gills, some only as larvae and others for their entire lives. It is a myth that you can get warts from touching a frog or toad. A group of frogs is called an army. An Amphibian's skin absorbs air and water. This makes them very sensitive to air and water pollution. The world amphibian population is in decline. FLOURIE MAE O. OJALES
9. 9. Amphibians Facts 1: Group Amphibians are categorized in three groups. Those are caecilians, frogs and toads, and newts and salamander. Amphibians Facts 2: Frogs and toads Frogs and toads are included as the largest group in Amphibians. They do not have tail but they have four legs. There are many kinds of frogs that you can see spreading in various rainforests. Most bright colored frogs are poisonous. Amphibians Facts 3: Newts and salamanders Newts and salamanders are different from frogs and toads. They have four legs but with a long tail. Salamander will like to spend most of their life in water. On the other hand, newts like to live on land. They only go to the water when breeding. Interesting Amphibian Facts FLOURIE MAE O. OJALES
10. 10. Bullfrog FLOURIE MAE O. OJALES
11. 11. American ToadFLOURIE MAE O. OJALES
12. 12. Mole SalamanderFLOURIE MAE O. OJALES
13. 13. Hellbenders FLOURIE MAE O. OJALES
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