They warm you when your cold when on your shoulder

You can put hats on 'em. Hope this helps

They can hold more than one of the same Artifact

Dear owner of Henry otter, he is fine you dont need to worry abput him. He was simply accepted into Woghorts and the disappering you saw was simply him entering fish #13 3/4.

I once had an otter that I named harry otter , he was a great otter he got me all the silica and black pearls I needed, he once saved me from a megalodon , he kept me warm to, he was a great companion I took him almost everywhere,but one day I was farming pearls with him I threw him at a fish to get pearls from it but instead he disappeared I looked and looked for him only to not find him but uneven got a message that he was dead, he's still out there somewhere, I still look for him to this day. #prayforharryotter

They WILL attack you if you attack them

i would not recomend using them for perls rather do cave runs with them bcause they hold more than 1 artifact for bosses

The otter can be very useful for gathering fish meat — it will harvest fish on demand. You can also use it to forage for Silica Pearls, and it will occasionally find Black Pearls.

Tamed Otters do not eat regular meat, only fish meat. My otter was refusing to eat even though she had plenty of meat in her inventory and plenty of meat in a nearby trough. To remedy this, I tried multiple things; moving the trough closer, giving her more meat, and even force feeding her. She would not gain hunger with regular meat. The moment I got fish meat, she ate. I'm not sure if they can eat other types of meats like mutton though.

When it’s on your back and your in a hot or cold place they will make you worm or cool and if your just in a normal place they will still have the same affect (hope this was helpful)

They can hold up to 5 artifacts

Increasing melee damage increases the hypothermic and hyperthermic insulations on the carrier.

If you put an eggs near them and they have a high enough melee damage on it any eggs close to it will start to incubate

It increases your insulation. With fur armor and a otter. The winter mountain won't kill you anymore

You can incubate eggs with an otter. Just plop the egg on it

Health increases its Hypo/Hyper bonus despite what others have posted.

They can carry artefacts for you so you can grab 2

I recommend using it for carrying large loads of items because if you carry the otter (at least on switch) its inventory doesn't count to your weight.

Something most don't know.... glitched right now. Otter can hold more than one of the SAME artifact. Upvote so others know

Can Cary all artifacts at once.