Frogs! Important to the ecosystem…  And taste like chicken…
Mating <ul><li>When frogs mate the male get on  the females back on get in the amplexus position </li></ul><ul><li>The amp...
Eggs <ul><li>Frogs lay many eggs because of the dangers that are present during and after birth </li></ul><ul><li>First th...
Tadpole <ul><li>After they hatch they continue to feed on their yolk which is in their gut </li></ul><ul><li>They will att...
Tadpole with legs <ul><li>After about 6-9 weeks the legs begin to appear </li></ul><ul><li>Its diet also expands to bigger...
Froglet <ul><li>At twelve weeks the frog is in its teenage stage </li></ul><ul><li>It should be almost fully developed and...
Frogs <ul><li>By 12-14 weeks the frog should be fully developed based on food supply and weather </li></ul><ul><li>Some fr...
Chytridiomycosis  <ul><li>Chytridiomycosis is an  infectious disease  of  amphibians , caused by the  chytrid   Batrachoch...
What is it? <ul><li>First the zoospores come in contact with an amphibians skin and produce sporangia </li></ul><ul><li>Th...
Why are frogs important? <ul><li>They are bioindicators for the environments </li></ul><ul><li>Frogs are very important in...
How long do frogs live? <ul><li>On average frogs in captivity live from four to fifteen years </li></ul><ul><li>The Europe...
Super skin <ul><li>Frogs have lungs but get extra oxygen and water through their skin </li></ul><ul><li>It absorbs the moi...
Chow time <ul><li>Frogs generally have longer tongues and will snap at anything they see </li></ul><ul><li>Toads have shor...
<ul><li>http://player.discoveryeducation.com/index.cfm?guidAssetId=BAAB8BE3-8E67-47DE-AFE0-EA4C0E923391&blnFromSearch=1&pr...
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Mike

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Tadpoles and Frogs

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Mike

  1. 1. Frogs! Important to the ecosystem… And taste like chicken…
  2. 2. Mating <ul><li>When frogs mate the male get on the females back on get in the amplexus position </li></ul><ul><li>The amplexus can last several days </li></ul><ul><li>The male fertilizes the eggs as they are laid </li></ul><ul><li>Frogs lay single eggs in masses </li></ul><ul><li>They usually lay eggs in the water but some species mate on land or in trees </li></ul>
  3. 3. Eggs <ul><li>Frogs lay many eggs because of the dangers that are present during and after birth </li></ul><ul><li>First the big yolk in the center will divide into two then four then eight and so on </li></ul><ul><li>It takes 6-21 days for the tadpole to develop </li></ul><ul><li>The tadpole will move in its egg </li></ul><ul><li>They're born in static water </li></ul>
  4. 4. Tadpole <ul><li>After they hatch they continue to feed on their yolk which is in their gut </li></ul><ul><li>They will attach to plants for 7-10 days </li></ul><ul><li>At four weeks the skin will begin to grow over its gills and it will develop teeny tiny teeth </li></ul><ul><li>They have long coiled diets to let them digest as many nutrients as possible </li></ul>
  5. 5. Tadpole with legs <ul><li>After about 6-9 weeks the legs begin to appear </li></ul><ul><li>Its diet also expands to bigger things like dead insects and plants </li></ul><ul><li>The arms will also appear elbows first </li></ul><ul><li>At 9 weeks it should look like a tiny frog with a tail </li></ul>
  6. 6. Froglet <ul><li>At twelve weeks the frog is in its teenage stage </li></ul><ul><li>It should be almost fully developed and look like an adult frog with a tail </li></ul><ul><li>It will however still be bound to the water </li></ul>
  7. 7. Frogs <ul><li>By 12-14 weeks the frog should be fully developed based on food supply and weather </li></ul><ul><li>Some frogs in high altitudes and cold weather may take an entire winter to get through their tadpole stage </li></ul><ul><li>Other frogs development may be unique or different from the traditional development stages </li></ul>
  8. 8. Chytridiomycosis <ul><li>Chytridiomycosis is an infectious disease of amphibians , caused by the chytrid Batrachochytrium dendrobatidis , a non-hyphal zoosporic fungus </li></ul><ul><li>It has been found on amphibians in every place except Asia and the poles </li></ul><ul><li>Its killed 30% of amphibians and extinct 100 species </li></ul>
  9. 9. What is it? <ul><li>First the zoospores come in contact with an amphibians skin and produce sporangia </li></ul><ul><li>The sporangia produce more zoospores and continue the cycle </li></ul><ul><li>Scientist believe it has always been present but recently it has become virulent </li></ul>
  10. 10. Why are frogs important? <ul><li>They are bioindicators for the environments </li></ul><ul><li>Frogs are very important in the food cycle </li></ul><ul><li>Frogs are extremely important for science </li></ul><ul><li>Frogs are important for disease prevemtion </li></ul>
  11. 11. How long do frogs live? <ul><li>On average frogs in captivity live from four to fifteen years </li></ul><ul><li>The European common toad however can live for up to 40 years </li></ul><ul><li>Not much is known about frogs in the wild </li></ul>
  12. 12. Super skin <ul><li>Frogs have lungs but get extra oxygen and water through their skin </li></ul><ul><li>It absorbs the moisture around it drys out quickly </li></ul><ul><li>They can shed their skin as much as every day </li></ul><ul><li>Toads skin doesn’t dry out as fast so it can go farther on land </li></ul>
  13. 13. Chow time <ul><li>Frogs generally have longer tongues and will snap at anything they see </li></ul><ul><li>Toads have shorter tongues and will stalk prey and snap at it with their mouth </li></ul><ul><li>Frogs have teeth on the roof of their mouth for holding prey not for eating </li></ul>
  14. 14. <ul><li>http://player.discoveryeducation.com/index.cfm?guidAssetId=BAAB8BE3-8E67-47DE-AFE0-EA4C0E923391&blnFromSearch=1&productcode=US </li></ul><ul><li>http://player.discoveryeducation.com/index.cfm?guidAssetId=4D94551E-1C1B-41BF-BD65-4DB7730C291D&blnFromSearch=1&productcode=US </li></ul>

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