Why Genealogies?

[shadowfax]

Originally Posted by Inziladun

Well, that's true. Due to their shrinking population and having their dwelling-place protected by an aura of fear, they were pretty much unthreatened. I'd put them apart from Elves, Men, Dwarves, and Hobbits though.
Also, Ents don't seen concerned with genealogies, probably because their family trees (ha!) would only have had a branch or two, due to their longevity and slow rate of breeding.

And such things would have taken a long long time to recite.

As far as we know, Ents didn't write anything down. I suppose they didn't need to as their memories stretched back virtually to the dawn of time.