Hi Adam, sorry for the delay, had some administrative stuff to do before ZooChat would let me reply. Our jaglions are very healthy, they will be 7 years old in April.
Jahzara, the black female, looks and acts much more like a jaguar than a lion. Her head is very round, for example, she is all muscle. She sounds like a jaguar too. Tsunami, the gold & rosettes male, looks and acts more like a lion. He is very blocky, and things like his tail movements are all lion. He roars when our other lions roar, but you can tell he's different.
As far as why they're healthy, they were fed properly as babies & growing up, they are well socialized & happy. I have a theory about hybrid vigor, but that's just my theory. They're just big, happy, healthy cats & we're very grateful for that.