Life is tough but so are worms—thanks to mom

Numerous studies show that the legacy of hardship can be passed from one generation to the next. The good news is that resilience can cross generations too.

Ant study sheds light on the evolution of workers and queens

Worker ants, despite their diligence, seldom encounter opportunities for social mobility. In many species, individuals adhere to strict caste roles: queens lay eggs and workers take care of almost everything else, including ...

Biologists zero in on role of plasticity in evolution

For more than a century, scientists have suggested that the best way to settle the debate about how phenotypic plasticity—the way an organism changes in response to environment—may be connected to evolution would be to ...

Mice with fewer insulin-signaling receptors don't live longer

Scientists studying longevity thought it might be good to lack a copy of a gene, called IGF1 receptor, that is important in insulin signaling. Previous studies showed invertebrates that lacked the copy lived longer, even ...

Protein love triangle key to crowning bees queens?

A honey bee becomes a royal queen or a common worker as a result of the food she receives as a larva. While it has been well established that royal jelly is the diet that makes bees queens, the molecular path from food to ...

Dynamics of crucial protein 'switch' revealed

Researchers at the University of Texas Medical Branch at Galveston and the University of California-San Diego School of Medicine have published a study that offers a new understanding of a protein critical to physiological ...

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