Sexually naive male mice, fathers respond differently to pups

Sexually naïve male mice respond differently to the chemical signals emitted by newborn pups than males that have mated and lived with pregnant females, according to a study published March 20 in The Journal of Neuroscience. ...

How did early primordial cells evolve?

Four billion years ago, soon after the planet cooled enough for life to begin, primordial cells may have replicated and divided without protein machinery or cell walls, relying instead on just a flimsy lipid membrane. New ...

Omega-3 can help laying hens avoid bone damage

Most of us are aware of the potential health benefits of omega-3 found in fish oil and flax seed. Now researchers have found that omega-3 could help laying hens avoid bone damage, which affects millions of hens each year, ...

Living cells behave like fluid-filled sponges

Animal cells behave like fluid-filled sponges in response to being mechanically deformed according to new research published today in Nature Materials.

Gene network illuminates stress, mutation and adaptation responses

For much of her professional life, Dr. Susan Rosenberg has studied the puzzling response of bacteria to stress and the mutations that result. In the current issue of the journal Science, she puts together the pieces of that ...

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