You can find frogs spawning in swamps and mangrove swamp biomes. They can also be spawned by growing tadpoles. The color of the frog that spawns depends on which biome the tadpole grew up in. The color of the frog will dictate the color of the froglight that it produces, so double-check before committing too much.
These brown frogs are found in the median climate rather than hot or cold. You can get this color of frog by growing tadpoles in forests, non-frozen oceans, hills, caves, plains, rivers, beaches, and even the deep dark.
As the name implies, these green frogs are tadpoles that grew up in colder climates. You can obtain cold frogs by growing tadpoles in frozen rivers, peaks, oceans, taigas, slopes, and even in the End.
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You can find these white frogs by growing tadpoles in warmer biomes. As long as the tadpole grows up in a jungle, the badlands, desert, savanna, warm ocean, or even in the Nether, the tadpole will grow into a white frog.
Frogs can be found naturally spawning in swamps where they will prey on slimes that are small enough. While they are no threat to larger slimes, the smallest slimes are devoured by the frogs.
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If the digested slime is a magma cube, the frog produces a different color of froglight depending on the color of the frog.
To breed a frog in Minecraft, feed two frogs a slimeball. After love mode ends, one of the frogs will become pregnant. The pregnant frog will search for a water tile with air above it to lay frogspawn.
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Frogs do not drop anything other than 1-3 experience points. Unless they are bothering you somehow, there is little to gain from killing frogs in Minecraft.
Frogs are an exciting new addition to the vast content Minecraft already has to offer. Not only do they interact with a previously enlisted mob, but fans have been anticipating the arrival of frogs ever since the introduction of lily pads. Frogs also provide fans with a brand new block which allows for more creative opportunities.