Tames are friends, not food.

At lvl 72 with flak armor on, a lvl 5 Troodon knocked me out with one attack at night. Last thing I saw was those glowing eyes before passing out. My Guess is that they attack vital organs. Luckily my Doedicarus was up for a game of baseball and launched that little devil out into the stands.

It is recommended to only tame troodon during the night, as this will double the taming output it gets from killing creatures. (Dododex correction: taming at night is 2.5x rather than 2x.)

Went to go grab a drop during the night on my dragon. I was wearing full Master Craft Flak Gear and two bites from these little sneaky bitches and I passed out. Luckily my dragon was on nuetral. Unluckily that it's fire breath roasted me too. Lesson learned:
Burn everything on fire before you get off your mount...
Everything

Step 1: make a taming pen.
Step 2: put a lvl 80+ baby wyvern into the pen. Knock it out if you want to and lower its health down to almost 0.
Step 3: Drop troodon inside while its eyes are glowing.
Step 4: Enjoy your tamed troodon