The Oregon Zoo's youngest elephant, Samudra, turns 4 years old Thursday, Aug. 23, and keepers say the popular pachyderm has done quite a bit of growing up this past year. Like many 4-year-olds, Samudra is active and inquisitive, loves to play in water, and prefers fruit to vegetables, according to keepers. But after a few years of depending on his mother for milk and being nurtured by his "aunties," he is now nearly weaned — a necessity with Rose-Tu's second baby on the way — and he has also received some life lessons in what it means to be a bull.