GitHub - maurymarkowitz/101-BASIC-Computer-Games: Type-in programs from the original 101 BASIC Computer Games, in their original DEC and Dartmouth dialects.

A slightly-modernized animals.bas is in current Debian in the animals package, binary animals. I had no idea that the thing was that old.

It sounds like this 101 BASIC Computer Games version might be the original; there's no reference to a prior implementation here:

https://medium.com/@alexey.medvecky/ai-in-the-80s-how-a-simple-animal-guessing-game-pioneered-machine-learning-before-it-was-cool-2f4a63dfe762