Joseph Bolivar DeLee (1869–1942)

Joseph Bolivar DeLee (1869–1942)

“The Prophylactic Forceps Operation” (1920), by Joseph Bolivar DeLee

“The Prophylactic Forceps Operation” (1920), by Joseph Bolivar DeLee

“A Two-Factor Hypothesis of Freezing Injury: Evidence from Chinese Hamster Tissue-Culture Cells” (1972), by Peter Mazur, Stanley Leibo, and Ernest Chu

“A Two-Factor Hypothesis of Freezing Injury: Evidence from Chinese Hamster Tissue-Culture Cells” (1972), by Peter Mazur, Stanley Leibo, and Ernest Chu

Revive & Restore’s Woolly Mammoth Revival Project

Revive & Restore’s Woolly Mammoth Revival Project

Revive & Restore (2012– )

Revive & Restore (2012– )

Multiplex Automated Genome Engineering (MAGE)

Multiplex Automated Genome Engineering (MAGE)

Peter Mazur (1928–2015)

Peter Mazur (1928–2015)

Zidovudine or Azidothymidine (AZT)

Zidovudine or azidothymidine

The Business of Being Born (2008)

The Business of Being Born (2008)

Human Papillomavirus (HPV) Strains 16 and 18

Human Papillomavirus (HPV) Strains 16 and 18 */ /*-->*/ Editor's note: Sarah Walls created the above image for this article. You can find the full image and all relevant information here.