Extinct-in-the-wild species in conservation limbo

For species classified as "extinct in the wild", the zoos and botanical gardens where their fates hang by a thread are as often anterooms to oblivion as gateways to recovery, new research has shown.

Prospecting for copper with machine learning and zircons

Zircons are common, hardy minerals that can be found in rocks up to 4 billion years old. Their structure and texture can reflect the conditions in which they formed, earning them a reputation as nature's time capsules. And ...

Salmon deplete fat stores while stopped at dams, study shows

Restoration of the critically endangered Atlantic salmon is an important issue in the rivers of Maine. Dams on Maine rivers have long been known to impact fish populations, but a new study led by the University of Maine quantifying ...

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