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Amphibians

Amphibians. History of Amphibians. Earliest known amphibians evolved from the lobe-finned fish 400 million years ago. The lobe-finned fish had strong fins the eventually turned into legs. Their skull is very similar to the earliest amphibians. Characteristics.

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Amphibians

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  1. Amphibians

  2. History of Amphibians • Earliest known amphibians evolved from the lobe-finned fish 400 million years ago. • The lobe-finned fish had strong fins the eventually turned into legs. • Their skull is very similar to the earliest amphibians.

  3. Characteristics • Live in the water most of the time when they are young, and on land most of the time as adults. • Cold-blooded • Can breathe through their skin. This is called osmosis. • No teeth. • Some have sticky tongues or no tongues. • They have glands that produce a slimy mucus to help them conserve moisture and prevent too much water from being absorbed into the body.

  4. Housing & Equipment • Most amphibians are best kept in a rectangular aquarium. • Tadpoles and amphibians who live mostly in water will need a aquatic habitat. • Amphibians that live on both water and land will need a semi aquatic habitat. • Amphibians that live mostly on land will need a woodland habitat. • The temperature of the aquarium will depend on the specie.

  5. Types of Amphibians • There are three groups of amphibians: anurans, caudatas, and gymnophionas. • Anurans include frogs and toads. • Caudatas include newts and salamanders. • Gymnophionas include caecilians.

  6. Frog breeds • Tree frog • Blue Dart Frog • Yellow Posion Dart Frog • Fire-bellied frog

  7. Salamander and Newt Breed • Blue Ridged Two Line Salamander • Dusky Salamander • Mountain Dusky Salamander • Seal Salamander • Rough Skinned Newt • Red Bellied Newt • Sierra Newt

  8. Feeding • Insects and spiders, slugs, and worms. • Some species will eat birds and small rodents. • Some of the aquatic species eat plants and dead animals. • Tadpoles will eat plants mostly. They can also be fed rabbit, dog, or cat food pellets, or baby food.

  9. Reproduction Frogs Salamanders & newts • Breed in the water • Eggs attach to plants in the water • The eggs hatch into tadpoles. • Tadpoles go through metamorphosis in which they develop legs, eyelids, jaws, and lungs. They lose their tails. • Most breed in the water. • The babies look like a smaller version of the adults. They have external gills. If they move onto land, they loose their gills.

  10. Supplies • Decoration for their aquariums. • Food • Food and Water Dishes • Health Care stuff • Lighting • Humidity control

  11. Other facts • They come in a wide variety of colors. • Body temperature changes according to the temperature of it’s surroundings. • There are about 6000 known species of amphibians • They were the first 4 limbed vertebrae to live on land. • Amphibians mean “double life”.

  12. Sources • Textbook • Google images • Wikipedia

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