(hurr hurr long and hard)
There's a lot about Jaida that doesn't make sense from a biological perspective. They've got a tuft on their tail which most lionesses wouldn't have. They've got a mane. They're almost twenty feet tall and built like fridges were all Michelangelo was surrounded by to take inspiration from. So what a Mack can and can't do is limited less by biology and more by whatever I find most entertaining at any given moment. As Roger Rabbit might say, "Only when it's funny!"
So... I usually lean on the idea that a Mack can purr, but it's a rarity. You've really gotta hit the right button. A Mack can also loaf, which is v. importantment for making of bisquites.