Michael E. Ruane

The National Zoo said Monday that one of its Asian elephants is pregnant and could give birth within the next few months, potentially bringing the zoo its first elephant calf in 25 years.

The trial would be “the first trial in history for crimes against the peace of the world,” U.S. Chief Prosecutor Robert H. Jackson said as...

Erno Spiegel's fountain pen was a subtle weapon in the fight for survival in a Nazi concentration camp.

Ahead of Linh Mai’s public debut, keepers said another female Asian elephant is acting as a stand-in mom to the 2-month-old calf, whose own mother spurns her.

By When the National Zoo's female elephant calf, Linh Mai, saw zookeeper Megan Mrozinski with a big bottle of formula Tuesday morning, the animal hurried after her.

When the Smithsonian's National Zoo & Conservation Biology Institute's female elephant calf, Linh Mai, saw zookeeper Megan Mrozinski with a big bottle of formula Tuesday morning, the animal hurried after her. It was 11:15. Feeding time.

A pioneering technique restored names to anonymous 300-year-old remains in St. Mary’s City.

Two documents that bear the president’s signature will be displayed in a new exhibit space beneath the memorial for the nation’s 250th birthday.

The public will soon get to visit the massive exhibit space in the memorial’s basement, an area long hidden from public view.

Soaring temperatures endangered rare copies of the 160-year-old antislavery papers signed by President Abraham Lincoln.