@nope.npc 1. most carnivors try to attack you as non adult. the attack rate depends on the age. younger will more try to flee, but older will attack you more often during a fight. the damage from the non adults scale also with the age.
2. some herbivores will attack you as non adult if you attack them first otherwise same as carnivores.
3. flyer like pteranodon and tapejara are able to fly from juvenile age.
4. agressive flyers like argentavis will attack you and can fly, both from juvenile age.

i also changed the eating rate while you tame a non adult, because they would not get hungry fast enough.

tbc...