Photos: Best zoo animal photos of 2014

Gorilla mother Kumili holds her newborn at the zoo in Leipzig, Germany. The baby gorilla was born during the night between March 10 and 11, 2014, and its gender is still unknown.  (Peter Endig / Associated Press)

Polar bear cub plays with polar bear mother Gerda in the zoo in Novosibirsk, Russia. The first cub of polar bear couple Kai and Gerda was born at Novosibirsk Zoo in early December 2013.  (Ilnar Salakhiev / Associated Press)

A gray langur (Semnopithecus) baby lies in the arm of mother Sariska in the zoo in Hanover, Germany. The monkey was born on Feb. 15. Its sex is not determined yet and therefore the little monkey does not have a name so far.  (Peter Steffen / EPA)

The young Rothschild giraffe Jamal, right, stands in front of his flock at the zoo in Leipzig, Germany. The giraffe born on Jan. 18, 2014, is called Jamal, which means “beauty.”  (Jens Meyer / Associated Press)

A newborn baby hippopotamus rests next to its mother at the Chapultepec Zoo in Mexico City. The baby hippo born Feb. 24, 2014, is the first one born at the zoo in the last 16 years. Mexico City authorities have started a contest to name it, inviting all to participate through the Mexico City online sites to choose a name. The baby hippo’s sex has yet not been determined because zoo keepers must keep their distance from the protective mother.  (Eduardo Verdugo / Associated Press)

A 2-month-old black panther cub looks on during a presentation in a zoo in St. Petersburg, Russia.  (Olga Maltseva / AFP/Getty Images)

A 6-month-old or so still nameless baby koala looks at its parents at the zoo in Duisburg, Germany. The female baby was taken from its mother’s pouch to be weighed. It weighed 350 grams.  (Roland Weihrauch / EPA)

Five-month-old panda bear Fu Bao climbs a tree in his enclosure at Tiergarten Schoenbrunn in Vienna.  (Herbert Neubauer / EPA)