And did they mention what happens to the 80+% of males that dont make it to silverback status? Few like to talk about the darker sides of gorilla life.
As for teaching cultures, it isnt about IQ. Cats and dogs teach thier young, both wild and domesticated species.
and raptors teach their young to catch prey
Yes, we should highlight failures (if you can call it that) more, not just when talking about apes but with ourselves as well. Otherwise we're prone to survivorship bias.