a giraffes does
Crocodiles cannot stick their tongue out of their mouth because it is attached to the bottom of their mouth by a membrane. This adaptation helps them to prevent water from entering their throat when they are submerged.
Camera traps are one means that scientists use to do this.
you pull it out hard
they have large covere with hard sharp bones
you could have bitten it really hard!
If you apply more pressure with your tongue it will, it doesn't usually simply because the tongue is a soft muscle, but your teeth are hard.
ok, if its hard around the Piercing that's normal, its a callus forming, but if your whole tongue is hard, then I'm not for sure why that is, only thing i can think of is the swelling.
no you dont beacause blue tongue lizards cant bite hard
If you have a tongue ring, it makes it hard to make out. the ring always gets in the way.
I have had my tongue ring for almost 10 years, and I have a small hard spot close to the tongue ring. I think it is just the tongues version of scar tissue. It hardens up to protect itself from the tongue ring being there. And I even have a round indention on the top of my tongue from the ball pushing down for so long. Hope this helps you!
A bell
Usually because that is what makes it hard.