A pair of penguins is an adorable sight! Penguins often mate for life, and you'll often see pairs standing close together or engaging in mutual preening to strengthen their bond. They have a charming way of waddling side by side on land, while in water, they swim gracefully in unison. Their black and white feathers create a striking contrast, making them look like they're dressed for a formal occasion. These devoted partners work together to build nests and take turns incubating their eggs and caring for their chicks.