To me it seems that the warm blooded dinosaurs replaced advanced mammal ancestors that were warm blooded, also.
Most of our ancestors were not perfect ladies and gentlemen. The majority of them weren't even mammals.
Mushrooms are miniature pharmaceutical factories, and of the thousands of mushroom species in nature, our ancestors and modern scientists have identified several dozen that have a unique combination of talents that improve our health.
In the modern era, Jewish sovereignty over the land of our ancestors is a relatively short phenomenon. From the time of the successful Maccabean revolt to the Roman annexation in 63 BC constitutes about 100 years of Jewish rule. Combined with Israel's independence in 1948, this is about 160 years of effective sovereignty.
It's very clear from Biblical history and Jewish history that Jewish monotheism wasn't developed in an instant, that it became gradually the accepted norm. But undoubtedly, Jewish ancestors were polytheists.
Generational change within a genre is hard to parse while it's happening. Only in retrospect can the passing of the baton from ancestors to progeny be clearly discerned.
Our ancestors went to the woods to find fuel; they set snares there for birds and gathered nuts and fungi.
In many ways, each of us is the sum total of what our ancestors were. The virtues they had may be our virtues, their strengths our strengths, and, in a way, their challenges could be our challenges.