Watch | The moment adorable African baby penguins hatch

Dallas Zoo uploaded a video on Monday showing a new set of additions to the penguin family at the zoo - two African baby penguins hatched only four days apart.The sex of the two yet-to-be-named siblings will only be determined in a few weeks time.The siblings hatched on January 28 and February 1, both tipped the scales at ounces 70.87 grams.