I found an alpha of herbivore island in the south

Tamed a lvl 85. Took forever to KO because the bastard kept swimming away after a few chomps. So I swam up to it's depth wall and left my Basilasaurus in its mouth while I Tranq'd it from above.

Sooo story time... Me and my tribe ate were looking for decent dunkles or Plesiosaurs. Then we saw... a massive... red glowing... swimming towards us... Alpha Mosa. HELP we cried! But our simple megs were no match. Rip

On the center map Mosa trench is at 65 45. You're welcome. I learned the hard way.

You will find them in the northern ocean of the ice caps......but too many anglers
Ans eels so be aware.....n they will mostly be near the bottom rock's of the ocean