@m1chelle1 Hey, I'm glad you like the post! Emus are the most vulnerable while they're still growing up, but as adults they're likely too big for a wild predator to bother with. We have a fence that keeps out the coyotes and keeps the emus in. However, bobcats can still sneak through and one killed a young emu (four months old?) years ago when we were first starting out. If your area has mountain lions, that would be an issue even for adults. If you're planning on keeping young emus outside, be sure their enclosure is bobcat/coyote-proof. You should also have a tall, sturdy enclosure for the emus: they've been known to jump fences!
In my experience, llamas and alpacas were not efficient guardians for livestock. We had five geese, and when the two females went to nest they were killed off by bobcats even while alpacas and one llama were in the enclosure. The male geese are still doing fine today: they're not sitting ducks like the females were. They're aggressive and can take care of themselves, but again I'm not sure about them protecting other livestock.
On chickens and emus, they get along fine for the most part, but be aware that emus vary in personality. I have a rambunctious emu who takes joy in chasing the chickens and guineas around, and on another occasion an emu accidentally stepped on a peacock which caused the peacock to limp for months. It's not necessarily "bonding" so much as the chickens skedaddling when an emu runs through.
@MissChick@dee Not stupid at all, it's a common question! They're kept as pets, and many of the emus are very affectionate and allow you to pet/hug them. They're highly curious, goofy, and a joy to have around. Raising them from the egg to adult was a rewarding experience I wouldn't trade away!