Nebraska's Henry Doorly Zoo and Aquarium celebrated the 2nd birthday of elephant calves, Eugenia and Sonny.The dynamic duo was surrounded by loved ones, including zookeepers, siblings, Mopani and Amandra, and all of their moms.Sonny has two small tusks poking through, and he weighs about 1,540 pounds. He loves apples and pears.Eugenia, also known as Nia, is a little smaller, weighing about 1,340 pounds. She has one tusk poking through, and her favorite food is still bananas.The pair love to spar and play with their siblings, and they are awaiting their third sibling, who should be making an appearance in late February into early March of this year.