Frog watch: use a field journal. (Critical Thinking).
Below are notes from your field diary. Write an educated guess, or hypothesis, to explain each frog's adaptation, a change that helps the frog survive in its environment. Of course, in real life, a field diary is just the beginning. Confirming your hypothesis could take years of field observation, data collection, and lab work.
Directions: Read the information below and hypothesize why each frog developed the trait described.
Species Name Description of Question Hypothesis: Adaptation/Trait Reason for Adaptation Golden Frog These brilliant Why do these Hand signals (Atelopus yellow frogs sit frogs use hand could be an zeteki) on rocks beside signals to adaptation to rushing streams or communicate the roar of rivers and wave even though they rushing their front legs can make vocal water, which at one another to calls? drowns out communicate. The the sound of cascading water is the frogs' extremely loud. calls. Suriname Toad Most frogs flick Why do they eat (Pipa pipa) out their tongues with their to catch food. fingers and not These frogs eat their tongues? with their fingers. Class Frog Females lay eggs Why lay eggs on (Centrolenella on leaves leaves above the fleishmanni) overhanging stream instead of streams. Males in the water? guard eggs until they hatch. Newly hatched tadpoles fall off leaves and plop into stream.
Don't Stop Now: What steps might you take to confirm each hypothesis?
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|Date:||Mar 11, 2002|
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