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stem cells

Illustration of an immune cell that wields weapons on one side of its body and construction tools on the other.
immunology

Immune Cell Assassins Reveal Their Nurturing Side

February 11, 2020

Don’t be misled by the bloodthirsty names of immune cells. Mounting research shows that the cells also fine-tune tissues and help the body heal.

VIDEO OPENER: TIME-LAPSE OF FLOWER OPENING.
botany

Unexpected ‘Germline’ Plant Cells May Shield New Generations

August 5, 2019

To avoid passing on new mutations to offspring, plants may minimize the number of divisions by the stem cells that make flowers and seeds.

evolution

Scientists Debate the Origin of Cell Types in the First Animals

July 17, 2019

Theories about how animals became multicellular are shifting as researchers find greater complexity in our single-celled ancestors.

Art for "To Heal Some Wounds, Adult Cells Turn More Fetal"
developmental biology

To Heal Some Wounds, Adult Cells Turn More Fetal

August 29, 2018

Once again, body cells reveal unexpected plasticity: In a newly discovered type of wound healing, which some researchers call “paligenosis,” adult cells revert to a more fetal state.