Some puns

1.

Pokemon fan:

do you have an favorite pokemon?

Another Pokemon fan:

 Absol-utely yes.  

(ba dum tiss)

2.

What do you call an aligator in a vest?

An investi-gator.

3.

What you call a group of singing dinosaurs?

A Tyrannochorus.

4.

What's the skeleton's favorite instrument?

The Xylo-Bone