Unicorns are a type of pony.
“Pinkie's Parents, Mama Pie and Papa Pie are two babies that Pinkie Pie found in the end of Lunar...Pinkie's Parents
“Mrs. Sparkle alias Twilight Velvet is a minor supporting character in My Little Pony: Friendship...Mrs. Sparkle
“Tootsie "Doolots" Flute is a unicorn pony who appears in Cheerilee's class, chattering and...Tootsie Flute