We see Scrat trying to scale a glacier but ends up hanging from his tongue where the tip is frozen to the ice. After freeing himself from that, his body then fills up with a water leak, prompting him to fall a long distance where he crashes through some ice, bumps his head on more and then lands hard on some ice. Played for comical effect.

There are a few other minor scrapes, including a short battle between Manny and some sea monsters, but none of it is very aggressive or gory.

At around 8:30 minutes in, Manny tells a story to the child animals and uses "ass" three times.

At about 14 minutes 20 seconds in, the beaver says "damn"

There is the use of asses 3 times but it is used in context of a burrow. There is also the use of damn but it's used as a dam. Those words are used in the context.

Crap is used twice by a dung beetle.

The word "Damn" is used as a double meaning dam-damn joke.

Death is a major theme in the film. Encroaching water is the theme throughout, since the movie is set in a large valley surrounded by a high dam of melting ice.

The water contains what, a quick web search suggests, look like a Kronosaurus, a Liopleurodon and a whole load of Megapiranhas - all toothy, and hungry. There are a few scenes where the main characters are threatened by these underwater monsters.

Two notable deaths occur. The first is quite subtle, where a swimming glyptodont disappears and his empty shell resurfaces. The second is Scrat who, after a long fall into some gushing water, finds himself in Nut Heaven, only then to be revived by Sid.