I lucked out. Basically I was on herb island (my base spot for most island saves) and then boom. A baby fem unicorn. “Dang, a baby” I said to myself not knowing that a baby meant an adult (it was late lol). Then days later I see him. THE ADULT. AND A MALE?!?! So I grew them and I now have 16 unicorns. Hooray! (DONT EVEN DARE SAY WHAT I KNOW UR GONNA SAY)