Ah yes. I should get to those mega evolution entries someday.
[Yes. Yes, you should. As you’ve said more than a year ago. —LH
Patience, Lanette. Good things take time to produce. —Bill
You designed the storage system in a month. —LH
…touché. —Bill]
On a serious note, anonymous, that’s actually a point of contention within the scientific community. Some scholars say that mega aerodactyl is what the species had looked like in ancient times, yes, but others say there’s actually no fossilized evidence that this is the case. If you look at the rock surrounding an aerodactyl fossil, the type of stone surrounding the skeletal structure is often uniform in nature, meaning the stone protrusions the pokédex claims were originally there are, well, not. Moreover, aerodactyl is traditionally revived through samples of old amber, which preserves the structure of tissue much better than fossilization does (for, well, obvious reasons included in the definition of “fossilization” itself). Yet no sample of old amber exists with any such stone fragment, not even in the famous sample of old amber found recently that successfully preserved a considerable amount of ancient aerodactyl tail. For that reason, I’m personally skeptical about the pokédex entries myself, as much as it pains me to admit that I disagree with reports vetted by a distinguished member of the Pokémon Symposium.
As for whether or not mega aerodactyl’s violence can be attributed to the strain its physical form places on it, I’m admittedly just as skeptical. It’s uncommon but not unusual for a pokémon to undergo some level of personality change when mega evolving, just as they do when simply evolving, and aerodactyl is a notoriously difficult to tame pokémon to begin with. It’s likely that the violence mega aerodactyl displays is merely the result of the freedom it gets from its boost in power, rather than specifically due to the form it’s forced to take or the process itself.