"Teen steps into snake nest; bitten 6 times"

[Crotalids]

I heard that the babies are the most dangerous because they are still learning how to envenomate their prey and so will often use a lot more venom in one single bite. That girl is lucky to be alive!

Slight misunderstanding.

It's not because they're learning how to envenomate their prey, they are fully capable of doing that from day one. It's the fact they're so small..They are food to birds etc when they're little, so a young venomous snake is going to inject as much venom as it possibly can into someone/something that it thinks is trying to eat/harm it.