After i spent about an hour tranking and taming this giant. Something caught my attention for about a minute right after my mosa tamed up. I turn heading towards it, My mosa green taming sign disappear right ahead in front of me. as i got there i saw no more mosa, only the basilosauros left there. I was whistling all over the place, but never found it.

I checked my group menu, it says there that my mosa decay…😳 what. 😡😡😡 so much time wasted…

So make sure your are there to take your mosa as soon as it tamed up.