Druid animal companion advancement

[psyronin]

Can a druid's animal companion increase in size because of the bonus HD? Specifically, a typical 2HD wolf that is an animal companion gets 2 bonus HD when the druid hits level 3, and the Monster Manual lists the advancement for a wolf as 3 HD (Medium); 4-6 HD (Large). Does the wolf become Large?

 

[Pyrex]

No. It's been stated in the FAQ that increasing HD does *not* increase the size of an animal companion.

 

[shilsen]

No. The animal companion gets only the benefits listed under the sidebar on pg.36 of the PHB.

 

[Stalker0]

This is one of the main choices you get as a druid now.... you can increase your old companion and make him stronger but still "portable" or go for a really big powerful creature.