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Microscopy image of the cnidarian <em>Hydractinia symbiolongicarpus&nbsp;</em>with cell nuclei stained blue and oocytes stained yellow
Ancient Immunoglobulin Genes Help Cnidarians Decide to Fight or Fuse
Immunoglobulin genes might have evolved much earlier than previously expected, perhaps even in the common ancestor of Cnidarians and Bilateria, a study suggests.
Ancient Immunoglobulin Genes Help Cnidarians Decide to Fight or Fuse
Ancient Immunoglobulin Genes Help Cnidarians Decide to Fight or Fuse

Immunoglobulin genes might have evolved much earlier than previously expected, perhaps even in the common ancestor of Cnidarians and Bilateria, a study suggests.

Immunoglobulin genes might have evolved much earlier than previously expected, perhaps even in the common ancestor of Cnidarians and Bilateria, a study suggests.

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Hydras
A semi-translucent hydra, complete with a body column, head, and multiple tentacles, is pictured in front of a gray background.
How Hydras Regenerate Decapitated Heads
Dan Robitzski | Dec 14, 2021 | 5 min read
Hydra vulgaris constantly replenish the cells in their heads and grow new ones to reproduce asexually. But gene expression analyses reveal that regenerating a head after an injury is a very different process.
Hydra single-cell sequencing gene expression
Image of the Day: Expressive Hydra
Nicoletta Lanese | Jul 26, 2019 | 1 min read
Researchers track which genes are active in the polyp during successive cell states.
Image of the Day: Squeeze In
Sukanya Charuchandra | Jul 30, 2018 | 1 min read
A novel system lets researchers examine the neuromuscular features of a hydra.
Image of the Day: Spammed by Hydra
The Scientist Staff and The Scientist Staff | May 1, 2018 | 1 min read
A junk mail filter can learn to pick out six behaviors of hydras by analyzing hours of video footage.
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