They lose 1 point of food every 15 seconds, so to time how long until they start starving, multiply their current amount of food by 15 and then divide by 60 twice. This will give you the number of hours left untill the food stat reaches 0.
((15 x food)÷60)÷60
The megalosaurus is good for raiding the rock drake trench but it cant jump up the ledges. The spino is better than the mega in every way. The karkinos is a great choice it can jump over the ledges but you will get stuck in mid air and the karkinos cant attack when in mid air, bring a shotgun if using a crab, it will also take forever for you to get back up. The reaper is the best choice in aberration strong as the spino but can jump like karkinos. The absolute best choice is the tek hover skiff.
Obtaining this creature will require you to enter the tek trench where puprle liquid and the nests of these creatures lay past the bioluminescent chamber, there you must steal an egg and raise in a cold environment feeding it nameless venom you can get by killing nameless
If you have the ability to go to genesis I highly recommend you tame a bloodstalkers for one of these litteraly 5 minutes ago I got my first Drake egg with a bloodstalke and it was lvl 185. Keep in mind it was official small tribes
The rock drake trench can be found at 57,56 at the area of the map called grave of the lost. Recommend u bring a glider suit and climbing picks and if u have a good tame to fight the drakes. In the wild they can be invisible and can glide in the wild so watch out also wear a HAZARD SUIT it's needed. Lastly there are a lot of nameless in the area so bring a light source. Good luck and ohh it needs to be cold to hatch so air cons
DO NOT USE 1 POUNT IF FOOD EVERY 15 SECONDS IN YOUR EQUATIONS (for raising rock drakes) I’ve seen many comments that say this but i have tested it and the babies lose 1 point of food every 10 seconds! If you assume it as 15 seconds your baby will likely die!
Rather than looking at the various tips on food loss per time, start a timer and stop it when 5 food is lost, then divide by 5 for an average. Every rock Drake is different, I raised 4 at same time with different timers.