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Can parental care influence sperm-mediated effects in threespine sticklebacks?

October 11, 2021

Animals can influence their offspring through multiple signals starting from fertilization to after birth. However, researchers have seldom looked at how these different signals work together to influence behavior. In a new study, postdoctoral researcher Jennifer Hellmann in the Bell lab investigated how changes in sperm and paternal care influence the offspring of threespine sticklebacks.


October 11, 2021


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Fish fathers exhibit signatures of “baby brain” that may aid parental behavior

September 26, 2019

Many new parents are familiar with terms like “baby brain” or “mommy brain” that hint at an unavoidable decline in cognitive function associated with the hormonal changes of pregnancy, childbirth, and maternal caregiving. A new study of parental care in stickleback fish is a reminder that such parenting-induced changes in the brain and associated shifts in cognition and behavior are not just for females—and they’re not just for mammals either.


September 26, 2019


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New grant to study fish genomics, behavior

July 1, 2017

The three-spined stickleback is a funny sort of a fish. They’re somewhat non-distinct: drabbish silver, small, and minnow-like, native to salt- and freshwater bodies throughout most of the Northern hemisphere. However, different stickleback populations have evolved very distinct morphological traits, demonstrating a natural diversity that makes them an ideal candidate in which to examine the mechanics of adaptive evolution and ecology.


July 1, 2017


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