Here is how the newborn Smilodon cubs were born in The Week at Genesis Park.
In the lab, Ellie was tendering a female Smilodon who was about to give birth to her newborn cubs.
Princess Yuna: Is she doing okay, Ellie.
Ellie: She's just about to give birth to her cubs. (tendering the mother Smilodon) Easy, Girl. You're okay.
Dr. Incubator: Won't be long now, Larry.
Larry: I hope not.
Then, Six Cubs are finally born.
Smilodon Cub: (sucking it's mother's milk)
Princess Yuna: They're so cute.
Yuna showed it to Isamu.
Princess Yuna: Look, Isamu. Cubs.
Prince Isamu: (happy gurgling)
Luna was beginning to remember when Yuna was a baby foal.
In the flashbacks, It shows images about how Luna cared for Yuna as a baby filly.
Princess Luna: (lays her baby into the changing table) Alright, Yuna. Let's get you changed.
Baby Yuna: (smiling at her mother)
Princess Luna: (using her magic and change her baby's diaper)
Baby Yuna: (laughs)
Princess Luna: There we go, All clean and ready for you bottle. (brings out her baby's bottle)
Baby Yuna: (sucking her bottle and groaning)
Princess Luna: (burping her baby)
Baby Yuna: (belch)
Luna started playing with her baby.
Princess Luna: Who's a happy filly?
Baby Yuna: (giggles)
Princess Luna: That's right, You are.
Baby Yuna: (giggles)
Princess Luna: Peek-a-Boo!
Baby Yuna: (laughs)
Princess Luna: Peek-a-Boo!
Baby Yuna: (laughs)
Princess Luna: Boo!
Baby Yuna: (laughs)
Princess Luna: Boo!
Baby Yuna: (laughs)
Hiro: I'm back, Luna. How's Yuna doing?
Princess Luna: She's doing just fine.
Baby Yuna: (giggles)
Princess Luna: Our little filly.
Baby Yuna: (happy gurgling)
The flashback ends.
Princess Luna: Yuna, I love you so much.
Princess Yuna: (hugging her mother) I love you too, Mama.
Snowdrop: Me too, Luna.
Princess Luna: And my little Isamu.
Prince Isamu: (hugging his mother and big sisters)
Princess Luna: (sheds a tear of joy)
The foals adore a motherly and daughterly love.