Telephoto and zoom are two completely different things.  Zoom simply means that the focal length (apparent magnification) of the lens can be changed, ie, it looks like it can look at things either closer up or further away by adjusting it.  

Telephoto, roughly, means that the lens has a relatively narrow field of view, thus it can be used to look at things further away.

Telephoto lenses can be either zoom or prime.  Zoom means that they can change how far they are looking at or prime means they have a fixed amount of magnification and can't be altered.  (Like an old instant camera with no zoom, but with much better picture quality.)  The reason for using a prime is that they are a) cheaper and b) produce much, much higher quality images for the price.

Similarly, a zoom lens can be in any part of the focal length spectrum.  You can have a 17-40mm zoom, which is basically wide angle (and not at all telephoto) or you can have a 100-400 zoom, which is entirely telephoto.  You can also have any variety of different combinations including things like 24-250mm lenses that span from wide angle all the way to telephoto in one lens.

What is the difference between a telephoto lens and a zoom lens?
I have a few pet wolves' in creative mode on minecraft (Pc) and one of them is on very low health (Its tail is sagging). Is there any way I can heal him?
