The Nearly Unkillable Eucalyptus Meets Its Match
Eucalyptus trees on Albany Hill are wasting away from blight. Some people may cheer—but these trees are also home to endangered monarchs.
Eucalyptus trees on Albany Hill are wasting away from blight. Some people may cheer—but these trees are also home to endangered monarchs.
In 2020, less than 2,000 monarchs were counted at overwintering sites in California. Scientists weren't sure if they'd come back. This year's count shows that they did, and in a...
A small group of scientists hopes a last-chance effort can save the western monarch butterfly, like it did for the California condor.
After dipping below its potential "extinction threshold," the beloved butterfly population crashed again in 2020.