Putting Levi in the exersaucer thing had less to do with developmental readiness and more to do with safety. (For the record, I'm pretty sure it's called a Baby Entertainer. But I promise you the plastic animals on this thing are not nearly as entertaining as the real life circus he lives in.)
When you're too little to roll out of the way quickly, it can be dangerous to be lying on the floor around here. Our much-loved jungle play mat is proving less and less useful with each kid.
In other news, Levi and Jacob were both captivated by this new addition to our living room decor for at least ten minutes, which is exactly how long it took for Jacob to notice that I was using his blankie to prop up his brother.