No one knows how apoptosis came to be, although there are theories. Even the simplest of animals are programmed for it.
Sarah Chaffee interviews biologist and Center for Science & Culture Senior Fellow Ann Gauger about apoptosis — or self-induced cell death.
A memory of past events helps a cell learn how to respond to recurring threats and protect the genome.
Previously relegated to servant tasks under the master DNA molecules, ribonucleic acids continue to surprise scientists.
From the molecular nanomachines within a tiny cell to the large-scale structure of the universe, design is everywhere to be found.