[gsaga]

>One of the Visayan warty pigs—a critically endangered species

It's a rare species, what they saw might be genetically coded behaviour, previously unseen because not much behavorial data is available.

[stubish]

What isn't generically coded behavior is pushing rocks against electric fences and listening to the noise to determine if the fence is live or not.

[stewbrew]

What makes you believe this is a more likely explanation than imitation of what they saw their peers doing?

[banku_brougham]

Electric fences haven’t existed long enough for evolution to have encoded genetic responses to them.