They’ll put anything in beer these days. Habaneros. Oysters. And now, organisms salvaged from fossilized bones. Time to get all prehistoric with Bone Dusters Paleo Ale, a new science project of a beer by Lost Rhino, now available at the brewery. Here’re four things to know about it.

1. This started with a paleontologist. He and the brewing scientist from Lost Rhino started swabbing fossils looking for usable yeast. After about 20 attempts, they tried a 35-million-year-old bone from an extinct whale found near Virginia’s Great Dismal Swamp. Pay dirt. A wild strain of yeast.

2. The beer it made: well, it’s yeasty. Kind of like a Belgian saison, but with plenty of amber malt. In other words, better than a beer made with fossils should taste like.

3. Their efforts got a shout-out from Scientific American. In fact, they gave it four out of four atoms in their beer rating system. (Okay, that’s a lie. They don’t have that.)

4. Right now, you can only get it at the brewery, but half of the 24 kegs they made are going out to local bars. And soon, you’ll be able to find it in 22-ounce bottles.

It beats waiting a million years.