I am having problems with rigging, need advice please!

is the tong at the same mesh as the frog? did u export all ? i could see the animation play in unity but the tong.

btw it looks good but u could improve the animation to be better, maybe make te head of the frog move upside down givin the feel like if its pushing the tong out. exaggerate the anim to make it look more fluid.

How is the tongue animated? It doesn't look like a bone animation. You probably have some DAZ specific animations in there that can't be exported to fbx. (Like an animated extrusion or path deform...I don't use DAZ myself, but these would be things from 3ds Max that would pose some problems...and look like your tongue animation)

the tongue and frog are all one mesh, and @Piflik, the tongue is animated with rotation sliders and scale sliders that are available on a parameters tab. Basically, I lined up the bones as you saw in the video, then you have a tool called weightmap tool, and with that I assigned the different portions of the mesh, mostly using a gradient tool within the weightmap tool, that allows you to make a nice gradient falloff for the weight maps instead of having to paint them on like in Blender. Then, there is a posing section where you, as I said, use rotation, transform or scale sliders to animate your bones by creating keyframes just like in MAX. I can't use MAX because I'm on a Mac, and Maya for some reason (which does run on Mac) has interface bugs because when I tried using it there were panels and buttons I couldn't access at all so my professor suggested I try either Blender or DAZ. I found DAZ to be poor in that it doesn't let you customize very much, but I was able to create this animation very fast and with Blender I can't seem to figure out how to make this same animation. I have also tried removing the scaling of the animation, but when it goes to Unity, the tongue still doesn't animate right, it doesn't twist or bend the way it is supposed to. @Mander, thank you very much! I will take that into consideration, I thought it looked a little "stiff" myself.

take a look at this. one of the 1st lesson of my animation class back in college.

http://en.wikipedia.org/wiki/12_basic_principles_of_animation