grappled creatures can take no action that requires two hands to perform.
How does that affect non humanoids? In an example say a crocdile grapples a PC, then the PC manages to reverse that grapple, can the croc thentake a full round action to lay a beat down on the Pc with both tail and bite, possibly getting another free grap to regain control?
I have been reading a lot of threads here but they seem to always deal between two humanoids, and if they don't it is always about the non humanoids controlling the grapple.
The way I read it yes it can do a full attack and attack with both bite and tail slap. And get the free grapple check if the bite hits. Unless you can pin it, grappling a croc is a very bad idea. Note make sure to read the Grab ability in the Beastiary.