The thing is that, I wonder why this question is asked lol but I did a bit of research and it says that the frog's tongues are attached to the front of their mouths, unless us which is at the back. This is because it allows the frog to capture its prey, as humans we don't grab our food by our tongue but instead we put the food in our mouth, for a frog though, having his tongue in front of his mouth will allow it to throw out its long slimy stick tongue so it can capture the prey and then it snaps back in and throws the food down it's throat.
