<s>[INST] Sure thing. The topic is cows. 
There might be some overlap with topics we've covered previously, but I'd like to focus on the evolutionary history of cows. From a genetic perspective, the family Bovidae is a relatively recent development, but from a morphological perspective, it is quite an old family. I'd like to listen to a discussion about the evolution of cows. Please start with the early beginning of bovids.

Let's start with the Early Eocene, roughly 56 million years ago. We have a primitive ancestor of bovids known as **Bunolagus.** What can you tell me about this genus?[/INST]