A Sumatran tiger named Sukacita gave birth to a couple of healthy cubs, a male and a female, on December 6 at Dallas Zoo, Texas.
Video released by the Zoo on Monday (December 27) showed the two-day-old cubs mewling, struggling to stand up being bottle fed by zoo staff.
The male weighed in at 1.1 kg (about 2.4 lbs), and the female at 1.02 kg (around 2.2 lbs) at birth, and both are growing fast.
The cubs receive around-the-clock care from a team of zoologists and veterinarians.
(Production: Pola Grzanka)