A not-so-selfish 'genetic parasite' helps to preserve fertility

Ribosomal DNA (rDNA) sequences are essential parts of many species' genomes. The highly repetitive nature of these DNA sequences makes them susceptible to shrinkage over timeā€”and if they shrink too much, cells die. If rDNA ...

How to reduce the number of birds killed by buildings

As high-rise cities grow upwards and outwards, increasing numbers of birds die by crashing into glass buildings each year. And of course many others break beaks, wings and legs or suffer other physical harm. But we can help ...

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