Or if they care for their descendants in their later years. (Not saying fish do this, though I wouldn’t be surprised if giant elder fish clear out predators.

Or if they care for their descendants in their later years. (Not saying fish do this, though I wouldn’t be surprised if giant elder fish clear out predators. A lot of people forget this bit but it’s suspected of being a big factor in insect and lobster longevity, which both capable of recognizing their offspring and not being territorial to their presence.)