I Can Spell, Yet I Have No Mouth. I Can Speak To Animals, But Can't Speak To Humans

Riddle: I can spell, yet I have no mouth. I can speak to animals, but can't speak to humans. I am fierce but small. What am I?

Answer: I am a bee.

Source: https://www.riddles.com/1187

I can spell, yet I have no mouth. I can speak to animals, but can't speak to humans. I am fierce but small. What am I? — I can spell, yet I have no mouth. I can speak to animals, but can't speak to humans by Anonymous v1.

Riddle: I can spell, yet I have no mouth. I can speak to animals, but can't speak to humans. I am fierce but small. What am I? Answer: I am a bee. — by Anonymous v2.