PigeonMan wrote:
Can druids heal themselves with Rejuve or Regrowth while in bear, cat or travel form?
Using those named spells? No.
In cat or travel form? No.
He is almost surely thinking of the bear-only spell "Frenzied Regeneration" which you get at level 36. It converts rage into HP as a handy little HoT.
"Converts up to 10 rage per second into health for 10 seconds. Each point of rage is converted into 10 health."
At level 46 version the spell converts each point of rage into 15 health, level 56 into 20 health, and level 65 into 25 health.