Polar bear cub Anori cuddles with his mother Vilma at the zoo in Wuppertal, Germany, on March 29. Anori was born on Jan. 4 and has stayed in a closed enclosure with his mother for the past two months. He is the half-brother of Knut, who died in 2011.

A male Sumatran orangutan dad gets a kiss from his cub inside their enclosure at a city zoo in Moscow on March 30.

A boy helps a newly hatched baby Olive Ridley turtle enter the sea, at the Rushikulya river mouth beach in Ganjam district, about 85 miles from the eastern Indian city Bhubaneshwar, India, on Tuesday, April 26, 2011. Millions of baby Olive Ridley turtles are hatching and entering the Bay of Bengal sea in the past few days.

A newly hatched baby Olive Ridley turtle make its way past a human footprint at the Rushikulya river mouth beach, April 26, 2011.