why sauron cant breed werewolves/dragons?

[Belegorn]

Originally Posted by tom the eldest

Why sauron cant breed them,like morgoth did?is it because he dont have enough time?

Sauron was the creator of the werewolf. He did so by putting spirits inside the bodies of wolves. It's said that, "Sauron brought werewolves, fell beasts inhabited by dreadful spirits that he had imprisoned in their bodies." [Sil., p. 198] Also,

"Men called him Thu, and as a god
in after days beneath his rod
bewildered bowed to him, and made
his ghastly temples in the shade.
Not yet by Men enthralled adored,
now was he Morgoth's mightiest lord,
Master of Wolves, whose shivering howl
for ever echoed in the hills, and foul
enchantments and dark sigaldry
did weave and wield. In glamoury
that necromancer held his hosts
of phantoms and of wandering ghosts
of misbegotten or spell-wronged
monsters that about him thronged,
working his bidding dark and vile:
the werewolves of the Wizard's Isle." [Lay of Leithian, v. 2064-2079]

Sauron is even called the Master of Wolves. So he could, and did, make werewolves. I'm not sure why he did not in later Ages, or if he did.

[mhagain]

The evidence is stacking up.

From Of the Ruin of Beleriand and the Fall of Fingolfin:

Sauron, greatest and most terrible of the servants of Morgoth, who in the Sindarin tongue was named Gorthaur, came against Orodreth, the warden of the tower upon Tol Sirion. Sauron was become now a sorcerer of dreadful power, master of shadows and of phantoms, foul in wisdom, cruel in strength, misshaping what he touched, twisting what he ruled, lord of werewolves; his dominion was torment.

And:

Then Sauron made it into a watchtower for Morgoth, a stronghold of evil, and a menace; and the fair isle of Tol Sirion became accursed, and it was called Tol-in-Gaurhoth, the Isle of Werewolves.

I think we can consider it definitive that Sauron was certainly a little boy who liked playing with dogs in the First Age. The interesting question then becomes: why not later as well? One possible answer is that after he let much of his power pass into the Ring he was unable to. There are probably others.