Animal Tracks: March 17 -23

A lion at the Tierpark Hellabrunn zoo in Munich on March 17.

A fur seal at Isla de Lobos, a small island located about eight km off the coast of Punta del Este, Uruguay, on March 19.

A two-week-old critically endangered Oryx calf named Rolih at television presenter Anna Ryder Richardson's zoo near Tenby, West Wales on March 18.

A butterfly takes off in the Pollinator Garden at the Natural History Museum in Los Angeles on March 20.

Starlings find their place amid field mustard, a symbolic flower to herald the start of spring, at a park in Tokyo on March 19.

A close-up view of goldfish for sale at a street market in Tehran, Iran on March 20. Buying goldfish and flowers is one of the traditions for Iranians during the eve of the New Year.

Three meerkat cubs cuddle adult animals in their outdoor enclosure at the zoo in Erfurt, Germany on March 19.

Twin polar bear cubs play during their first presentation to the media at Hellabrunn zoo in Munich on March 19.

Giant Panda Tian Tian is seen his enclosure at the Smithsonian's National Zoo in D.C., on March 20.

A red panda named Yan at the Tierpark Hellabrunn zoo in Munich on March 18.

A Siberian tiger at the Tierpark Hellabrunn zoo in Munich on March 17.

White storks warm in the sun on a first day of spring at the Rehabilitation Center for Protected Animals in Przemysl, Poland on March 20

Turtles sun themselves on a log at the Smithsonian's National Zoo in D.C. on March 20.

Lions play in their enclosure at the Smithsonian's National Zoo in D.C. on March 20.

A elephant eats bamboo in his enclosure at the Smithsonian's National Zoo in D.C. on March 20.

A Gentoo penguin swims through its basin at the Tierpark Hellabrunn zoo in Munich, Germany, on March 18.