:dubious: Jump to conclusions much? There doesn’t seem to be much existing research on nonhuman paternal behavior and its affect on interaction with adult offspring, but there’s some. For example:
So apparently, male mice who perform paternal care for their offspring will recognize those offspring as adults and will be more accepting of them. Sounds like the sort of behavior you were looking for examples of.
And it makes sense, when you come to think of it: It is less efficient for a male to compete with his own offspring than with unrelated individuals, because the success of his offspring is in a way his own success. Moreover, it is generally less efficient for a male to mate with his own (female) offspring than with unrelated individuals, because of the negative consequences of inbreeding.
So it seems reasonable that it would be evolutionarily advantageous for males to recognize their adult offspring and treat them somewhat differently than strangers.
With horses, a stallion has a herd, which will, over time, come to be largely his offspring. (Primarily female; males are driven off or at best, tolerated, once they reach breeding age.)
I think this is fairly common in social animals that live in herds or packs.
Are you sure about this? I know that Wikipedia is not always reliable about details, but its description of wild horse herds seems to be almost the exact opposite of what you claimed.
Namely, according to this article, the herd stallion drives out both colts and fillies when they reach maturity, apparently so that he won’t be mating with (and perhaps, in the case of colts, competing with) his own offspring.