Suzy, a Siberian-Bengal tiger, snarls at the camera from her enclosure on owner Dave Bennett's property in Highlands, British Columbia.

Flamingos flock together at a pond at the Jurong Bird Park in Singapore.

A butterfly rests on a flower at the Nehru Zoological Park's butterfly park in Hyderabad, India.

A new Caledonian crested gecko uses his tongue to moisten his eye at the World of Reptiles exhibit in New York City's Bronx Zoo.

A 20-day-old Malay fish owlet sits in a basket at a nursery in the Jurong BirdPark in Singapore.

Twelve-year-old male lion brothers Tonyi and Tombo lie with each other at Werribee Open Range Zoo in Werribee, Australia.

Visitors watch elephants swim in the indoor pool at the Leipzig Zoo in eastern Germany.

A European garden spider sits in its web's center at a garden in Briesen, Germany.

Baby Bob, a young chimpanzee, plays with caregiver Andrea Maturen during her rounds at the Suncoast Primate Sanctuary in Palm Harbor, Fla.

Lions rest in a zoo near Amman, Jordan.

A bald eagle peers from his cage under the midday sun at the Spring River Park and Zoo in Roswell, N.M.

A common kingfisher emerges from the water with a fish in its beak.

Tissues of a mouse embryo are labeled with green and red fluorescent protein to track processes such as the development of brain cells, the growth of tumors and the spread of cancer cells.

A Hanuman monkey named Sariska carries her 8-day-old baby during the little one's public presentation at Hanover Zoo in Germany.