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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
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.
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.
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.
Frog breeds
Tree frog Blue Dart Frog Yellow Posion Dart Frog Fire-bellied frog
Salamander and Newt Breed
Blue Ridged Two Line Salamander
Dusky Salamander Mountain Dusky
Salamander Seal Salamander Rough Skinned
Newt Red Bellied Newt Sierra Newt
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.
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.
Supplies
Decoration for their aquariums. Food Food and Water Dishes Health Care stuff Lighting Humidity control
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”.
Sources
Textbook Google images Wikipedia