How birds lost their penises

In animals that reproduce by internal fertilization, as humans do, you'd think a penis would be an organ you couldn't really do without, evolutionarily speaking. Surprisingly, though, most birds do exactly that, and now researchers ...

Stem cell pioneer sues Nobel assembly in US

A pioneer of stem cell research is suing the assembly that awards the Nobel medicine prize, in a first such lawsuit, over claims it made about this year's winners, a spokeswoman said Thursday.

MicroRNAs in plants: Regulation of the regulator

MicroRNAs are essential regulators of the genetic program in multicellular organisms. Because of their potent effects, the production of these small regulators has itself to be tightly controlled. That is the key finding ...

New insights on cell competition

Scientists from the Spanish National Cancer Research Centre (CNIO) describe how natural selection also occurs at the cellular level, and how our body's tissues and organs strive to retain the best cells in their ranks in ...

Lace plants explain programmed cell death

Programmed cell death (PCD) is a highly regulated process that occurs in all animals and plants as part of normal development and in response to the environment. New research published in BioMed Central's open access journal ...

Discovery could lead to new type of cancer treatment

(Phys.org) -- Israeli researchers have identified a new mechanism for inducing the programmed death of cells, a discovery that could be used to develop novel methods for treating cancer.

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