Gosh-Haldir - The Clutch Mother

Gosh-Haldir <The Clutch Mother> is a level 15 rare green crocolisk that can be found in the southern part of the dried up Loch in Loch Modan. She patrols the area with a bunch of other crocolisks. She is easy to spot because she is much larger than them and she has been upgraded to the new cataclysm crocolisk model where they remain rather dull looking. 

She drops the typical green item and a fairly decent amount of experience for leveling characters.

She is also especially desirable as a hunter pet for pretty much all hunters who aren't worgen. She is the only tamable "true" green crocolisk in the game other than the Swamp Crocolisks in Gilneas. There are similar looking crocs that can be tamed in Silverpine forest and Uldum that will appear in this color, but they are "color changers" meaning that they will not always appear in this color when summoned.

Gosh-Haldir is one of 5 rare tamable hunter pets in this zone. All of them are:

Ashtail, level 16 bluish-grey fox

Gosh-Haldir, level 15 green crocolisk

Lord Condar, level 17 white condor

Nix, level 17 yellow firefly

Shanda the Spinner, level 18 grey tarantula

Gosh-Haldir can be found with NPCScan. You will need to add it, her NPCScan ID is 2476.

You can also use this macro to help find and tame her:
/tar Gosh-Haldir
/stopmacro [noexists]
/cast Tame Beast

Although Gosh-Haldir is rare, I believe that she is on a pretty short spawn timer. It seems to be somewhere between 1-2.5 hrs.