article_snippet.sent: Helping hand: The babies were born to mothers Layla and Kumi on January 17 and 19, but keepers don't know either of keepers genders yet, and so keepers haven't been named .
article_snippet.sent: Despite being born back in January, keepers at Bronx Zoo have yet to learn either of the babies' genders, and so neither of keepers at Bronx Zoo have been named yet.
article_snippet.sent: The eldest of the pair was delivered on January 17 this year, while the younger arrived just 48 hours later, much to the excitement of animal keepers.
article_snippet.sent: The new babies are joined by two other youngsters who were born earlier in 2014.
article_snippet.sent: Having a cuddle: While The new babies have different mothers, The new babies share a father, 32-year-old Ernie who was nowhere to be seen in these pictures .