Extinct animals can be as fascinating and puzzling as extraterrestrials. Here are just a few of the animals believed to have gone extinct in the last century.
Captain Meade didn't know he had caused the injury until President Roosevelt revealed it in his autobiography 12 years later. The extent of it was hidden.
"Intolerance in the 23rd Century? Improbable!" Gene Roddenberry, the creator of "Star Trek," is quoted as saying in the 1968 book "The Making of Star Trek."
One of the richest men to ever live, and certainly one of the richest Americans to ever live, was John D. Rockefeller, who celebrated his own personal holiday.
Wilson's friend Dr. Cary T. Grayson bought 12 sheep and four lambs from a farm on behalf of the president; the flock would eventually grow to number 48.
The 19th century Arctic explorer generally credited with leading the first expedition to reach the North Pole is naval officer Rear Adm. Robert Edwin Peary.
Marie Curie and her husband were some of the more noteworthy scientists of the 20th century, particularly for their pioneering work in radiation and chemistry.
Some believe that the Bible forbids the wearing of jewelry. And in some passages, this appeared to be true, but the real answer is much more complicated.
Swiss psychiatrist Carl Jung was a pioneer in modern psychology. He founded analytical psychology, a field that emphasizes the individual's need for wholeness.
It was January 27, 2013, and the last weekend of summer break for Brazilian college students, many headed to Kiss Nightclub to enjoy some moments of freedom.
Though road safety has dramatically improved since their introduction, the dawning of seatbelt use in the 1980s often faced fierce opposition during the '80s.
The ancient underground graveyards contain ruins such as mausoleums and stone arches, along with a small dirt mound said to contain the bones of St. Peter.