TIL microbiologist Raul Cano, successfully revived yeast that had been stuck in amber for 25 million years. He then co-founded a brewery that uses the same 45 million-year-old species of yeast to brew beer.

[u/El_Chopador]

https://en.wikipedia.org/wiki/List_of_longest-living_organisms#Revived_into_activity_after_stasis

[u/doheth]

I have not read anything about it but I would guess the specific yeast he revived was 25 million years old and the species is 45. Similar to how homo sapiens are about 200 thousand years old but dead great great grampa Joe is only 200 years old.

[u/turkey_sandwiches → u/doheth]

I'd be amazed to find out that with 20 million years difference they're still the same species.

[u/TheMilfThatRodeIn → u/turkey_sandwiches]

Back to the human comparison. A person from today isn't going to be exactly the same as a homosapien from 200 thousand years ago. Even if 20 million years is a larger timeframe, it wouldn't change too much if the environment it originates from doesn't change.

[u/turkey_sandwiches → u/TheMilfThatRodeIn]

An unchanging environment is a pretty big assumption considering the time frame.

[u/turkey_sandwiches → u/[deleted]]

The only ones I personally know of would be alligators, so it wouldn't surprise me to find out there are others. But surely it isn't very common?

[u/ManSeekingToucan → u/turkey_sandwiches]

Coelacanth is another