Already said but worth saying again - upgrade its melee damage for more cold resistance!

Guys!!!! Otters DO keep u cool in heat waves and other places. Tested it by going into the volcano w my otter. Not sure if it works in scorched earth, (haven't left the island yet...) Up so peeps can see!

IMPORTANT TIP!!!

Otters are the ONLY creature in ARK that can carry multiple artefacts in its inventory at once. MAKE SURE you bring one it a cave to get multiple of them at once.

I’ve read many of the comments and I just want to clarify that the otter insulates you. Meaning yes it will protect you from the cold, however it also helps keep you cool from heat.

Note for mobile player. Otter can't carry artifact at all. So if you aim to tame one to carry artifact, don't waste your time.

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.

you can find these cute little fella's at the beaches (they are mostly in the water)

You can give it hats I hope this helped

JM here, anyway just wanna clarify that it CAN'T carry artifacts(plural)

on mobile, happy to help,✌️

They can carry multiple artifacts in their inventory including multiple of the same one