Akiko Iwasaki, an immunologist who became a lifeline for the worried and the curious during the pandemic, thinks that nasal spray vaccines could be the next needed breakthrough in our fight against the coronavirus.
The lush biodiversity of the Amazon may be due in part to the dynamics of branching rivers, which serve as invisible fences that continuously barricade and merge bird populations.
RNA and peptides coevolving in the primordial world might have jointly served as a precursor to the modern ribosome.
Several projects are aiming to bring back mammoths and other species that have vanished from the planet. Whether that’s technically possible is beside the point.
When researchers gave a genetic molecule the ability to replicate, it evolved over time into a complex network of “hosts” and “parasites” that both competed and cooperated to survive.
Life could use a more expansive genetic code in theory, but new work shows that improving on three-letter codons would be a challenge.
The discovery that short peptides can form spontaneously on cosmic dust hints at more of a role for them in the earliest stages of life’s origin, on Earth or elsewhere.
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