They spawn quite alot in the beaver ponds near castle on official. Two people, one killing salmon and one feeding otter makes this a very easy tame. The beavers also protect you from carnosine and other nasty predators. Hope this helps.
Once I went out to tame Raptors, or... try to shoot one from the safety of my raft... but then I saw a lil otter, my heart melted!!! Then I realized, the OTHER things that were in the area included: A baryonyx, a pack of 7 Raptors, A theri, and sum other aggressive friggin things, and the otter STILL LIVES THERE. Soooo many trikes and parasaurs died to the pack of FREAKING 10 RAPTORS! But the otter. Just lives. How.
Otter goddess here, the Otter God has brutally murdered thousands of innocent people who wanted to do this week's dungeon (week of April 1) because they wanted to get past the threat of juggernaut castrodides and Otter minions. Upp so he can see
Well... I am a otter god... I am here to message all those who may have "acidenantaly" Smooshed my children with a a horid creature. But I will find you. I will Murder you. I will have millions of my children eat you. We also have an alliance with the dodos and all shoulder mounts. We do not take murder lightly this is the first warning.
Their a rare/ uncommon spawn. They are mainly found down south in max of a pair of two. But their usually found alone. They are a passive non-agressive tame that wont flee. (They wear hats too). Have fun!