[Snickering Hound]

Ruminant herbivores survived, non-ruminants were wiped out.

Try proposing a theory explaining that.

[TigersEye]

Ruminant herbivores survived, non-ruminants were wiped out. Try proposing a theory explaining that.

The Atlanteans had a green-tech society powered by lithium-based batteries. They carelessly discarded their lithium batteries on the steppes which poisoned non-ruminants. They got theirs in the end though.

[ForGod'sSake]

Ruminant herbivores survived, non-ruminants were wiped out.

I have no reason to doubt this but it's the first time I've seen it. Odd that. Do you have any theories of your own? Type of diet or the way the diet was handled by the digestive system???