Do not fight the alpha of these if they are above level 20. I was patrolling mm the waters around my base when a level 45 alpha mosasaur attacked me. Within moments all 4 of my pliesaurs (levels 60-70) were dead, along with my 6 sharks (levels 45-125), my mosasaur (level 120) lasted a little while longer before falling valiantly. Just me and 3 turtles (level 60, 65 and 80) now. The alpha tanked over 400 hits from my blue crossbow (300 Stone bolts and 100 tranquil, i switched to tranq when i ran out of stone) before the turtles died. I died almost immediately afterwards. Seriously. The alpha of these things are just gross. I've now decided to quit the game.

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