One day, I was on my way to herbivore island with my taming raft and something started to attack. I dismounted my raft and behind me was a 145 sarco munching on my frog.

I quickly whistled passive and, by some miracle, was able to close both dino gateways, trapping the sarco inside. I also, by some miracle, had the right kibble on hand and kibble tamed it.