I went to one of the mountains on the island to get obsidian and metal. I became overencumbered and found a pachy to act as a pack mule. I tamed him up but on the way down, agroed 2 kentros. I killed the one who spiked me but was one shot to slow to save the pachy. It then took 15 minutes of overencumbered walking to get to the beach where I found another one to be s pack mule. After protecting it from troodons and an argentavius while taming, I brought him back to my raft and unloaded the metal and obsidian into a storage box. Then on my way back to base, a sarco jumped on the raft and yanked him into the ocean with 2 piranhas and a meg, killing him almost instantly. Moral of the story is don't waste time taking things cause they'll die eventually and just fight the BLTs with your fists.