Tiny endangered pupfish return to this lake east of Phoenix after a year's absence
Tiny endangered pupfish have returned to Ayer Lake at the Boyce Thompson Arboretum after the lake was drained for dam repairs.
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Officials consider extreme measures to deal with 'urgent' threat in popular bay: 'It would be the worst thing ever'
An invasive sea creature has been found in Kāneʻohe Bay, Oahu, Hawaiʻi. If the majano anemone spreads, it could put delicate coral reef ecosystems at risk.