Originally posted by Leffe-(SWE):

Tamed Wolf 0,0 healing
1 star wolf 0,1 healing
2 star wolf 0,2 healing my own guess sins i do not have any 2 star

The thing is it's only happens when the wolf has recently eaten food and damage them selfs.
The next day they eat they heal completely.

yes all tames boar wolf lox etc seem to full heal only once per game day..