And when the word becomes incumbent on them, We will bring out for them a living creature from the earth which will speak to them because mankind was not sure of Our signs (R 6)
In many sayings of Prophet Muhammed (SAWS), the living creature from the earth is mentioned as a sign of the approaching end. The hoopoe talked to Sulaiman (PBH) 27:22, it was a miracle, similarly the living creature will talk to human beings.