A character is almost always nude with strategically placed hair.

Females display cleavage in revealing outfits.

Hige tells Blue that he always has to pee whenever he's in the mood. (Meant to be a joke)

Some kisses among couples.

Many fights amongst creatures. Some are rather graphic with a lot of blood.

A man shoots another man through the mouth. Shot occurs offscreen, but the blood splatter is shown in a lingering shot.

People are seen being mauled by wolves, mostly offscreen, but blood is still present.

A fight between wolves and a walrus occurs late in the series. VERY BLOODY AND INTENSE.

Many characters die in this series. Some rather graphically.

Bastard is used alongside lesser profanity like ass.

Alcohol and tobacco use.

An owl who is hinted as possibly being a spectre appears randomly in various episodes. It's voice and manner of speech may spook some viewers.