it can't do you any bad
Well, Manta Rays don't sting. They are harmless.
Stingrays are the dangerous ones. They don't aggressively attack humans. They are timid and curious creatures, but it is possible to get stung if you step on one. If they loose their barb, nothing happens. It just grows back.
It will grow back.
it grows 12 cm when its his/her birthday.
No they do not. Sting rays only have stingers. One thing about stingrays is their stinger looks like a big fingernail and comes off from it's tail. IT does grow back. If you get a chance to look at a ray up close then that is one way to tell them apart.
To my knowledge, you would not die after touching a Manta ray's tail. They contain no barb, or poison.
The normal manta ray is usually non-aggressive, but it is capable of defending itself with its dangerous tail. A manta ray may also ram its foe, although this clumsy attack is treated as a secondary attack.
stinger?
some lizards will grow them back and some lizards won't
With the stinger on the tip of their tail (:
A scorpion.
Scorpion
scorpions
They don't have a tail. The fire ant as one but... its more of a stinger