Frogs are Amphibians Amphibian means “on both sides of life”
What do amphibians have in common? They live on land and in water They breathe water when they are young and either grow gills OR breathe air when they are older They are cold-blooded Many lay their eggs in water Most live in fresh water About 88% of amphibians are frogs
What do Frogs Look Like?
Have a short body
Webbed fingers or toes
Are excellent jumpers
Start out as tadpoles
Where Do Frogs Live? All over the world (see black on map) Most species live in the rainforest They do NOT live in Antarctica and some oceanic islands
Camouflage Is common in frogs Most with camoflage are nocturnal awake at night this helps them hide Some can change colors only two colors
Poison Many frogs have toxins so other animals will not eat them; they taste bad Some frogs are very poisonous They usually have bright colors Some frogs get their poison from the animals they eat (e.g., ants)
Eating Frogs have teeth used to grind food Frogs have a sticky tongue Use it to catch food Most eat flies and insects Some large frogs eat small mammals, fish, and smaller frogs Very few eat just plants
Life Cycle 2. Tadpole (or Polliwog) 1. Egg – most female frogs lay eggs in early spring 4. Adult 3. Metamorphosis Captive frogs and toads can live up to 40 years
Frog Calls and Croaks Some are so loud they can be heard a mile away Many have deep calls or croaks They call by passing air through their throat The main reason they call is so males can attract females Other reasons are to guard territory, to forecast rain, and when under stress (if a predator is near)
Famous Frogs Frogs are used a lot in books, movies, commercials and cartoons!