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JungleWalk.com Lesson Plans Use the search box to search for additional pictures or information for any particular animal. Clicking on the search button will open a new window with search results. Search by animal name only (e.g., search for 'lion', but not 'carnivore'). Click on the 'photos' tab to view the thumbnail images, click on each to view larger image. Lesson Plan Table of Contents | Send us your feedback about this lesson plan Life Cycles Goal: To understand life cycles, with examples of butterflies and frogs Grade Level: 3-5 Author: JungleWalk A life cycle is the growth order and the different stages attained in animal development until it becomes an adult. Some animals have many more growth stages compared to other animals. A butterfly has four main growth stage while a frog has three main growth stages. At the end of the process, the adult that emerges looks like its parents, just like we humans do. Life Cycle of a Butterfly   Butterfly Butterflies have four main stages in their life cycles, and they are in the following order: Egg stage - First an adult butterfly lays oval eggs on specific kinds of leaves. Video of butterfly laying eggs on a leaf. Caterpillar stage - After the butterfly lays eggs, little caterpillars emerge from them. They eat a lot and grow big on the host plant. Watch a video of caterpillars munching on leaves Chrysalis (Cocoon) Stage - The caterpillars shed their skins (this process is called molting) a few times, and finally grow a hard covering and lie inactive. This is the cocoon or chrysalis stage. Adult Stage - Finally from the cocoon, emerges a fully grown butterfly, that resembles its parents. Here's a video of an adult butterfly emerging from a cocoon Here's another emerging butterfly View Slide Show Life Cycle of Frogs and Toads Frogs and Toads have three main stages in their life cycle: Egg stage: Female frogs lay a large number of eggs which look like a mass of jelly. Tadpole Stage: The eggs hatch and out of them come little frogs or little toads that look like fishes. They are called tadpoles (or pollywogs). They have tails and they swim and breath like a fish in water using their gills. Here's a video of an adult toad and some tadpoles. (To access this video go to the page and choose the video type). Tadpole swallowing a small shrimp Tadpole wiggling its tail Adult Stage: Gradually the tadpole loses its tail and forms front and hind legs. It no longer can breathe in water and becomes an adult frog or an adult toad. Here's a video of an adult frog with narrative To access this video go to the page and choose the video type) and this link lead to a few videos of toads. View Slide Show   Monte Verde Toad

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