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AMPHIBIANS

AMPHIBIANS. Ms. Bridgeland 5 th Grade. Amphibian: “Double – life?” . They begin their lives in water and spend their adulthood on land To reproduce, they return to water. 2 Major Groups of Amphibians. Salamanders : Frogs/Toads:.

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AMPHIBIANS

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  1. AMPHIBIANS Ms. Bridgeland 5th Grade

  2. Amphibian: “Double – life?” • They begin their lives in water and spend their adulthood on land • To reproduce, they return to water

  3. 2 Major Groups of Amphibians • Salamanders: • Frogs/Toads:

  4. How can you tell the difference between salamanders and frogs/toads? • Salamanders have a tail even when they are adults • Frog/toads lose their tails before they become adults

  5. “What are the differences between FROGS and TOADS?”

  6. Frogs Toads

  7. FROGS: • Need to live near water • Have 2 bulging eyes • Strong, long, webbed hind feet that are adapted for leaping and swimming • Strong and slimy skin (like very moist environments) • Will take long jumps • Like to lay eggs in clusters • Found on every continent except Antarctica • More than 400 species • Have a lot of PREDATORS

  8. TOADS • Can live further away from water • Lower, football-shaped eyes • Stubby bodies with short hind legs (for walking instead of hopping) • Warty and drier skin • Lay eggs in long chains • Will run or take small hops • Can be found worldwide except for Madagascar, the polar regions, and Polynesia • More than 300 species • Do NOT have a lot of predators

  9. Amphibian Reproduction • Salamanders – eggs are fertilized internally • Frogs and toads –eggs are fertilized externally • For all amphibians, Fertilized eggs develop in water • What is special about amphibian eggs is that they have a protective jelly that coats the egg

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