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Life sciences/Organismal biology/Animals/Vertebrates/Mammals

The technique produces tiny amounts of the opioid molecules, but the process might someday reduce the manufacture time of certain medications.
This unique mammal found in tropical Asia and Africa is covered in spiky scales.
A global, four-year project involving hundreds of scientists shows how avian lineages diverged after the dinosaurs’ extinction.
The primitive form of crayfish anxiety probably shares some evolutionary origins with the more developed human form, although the ways in which this emotion has shaped each species remain unknown.

In a statement jointly published in Science and Nature this week, 40 influenza virus researchers announced that the voluntary pause on certain types of H5N1 avian influenza research should end in countries where the aims of this moratorium have been met and authorities have reached decisions about how best to conduct such work safely.