IFLScience on MSN11d
Western Monarch Butterfly Overwintering Population Falls 96 Percent, Second-Lowest Number On Record
We know small populations are especially vulnerable to environmental fluctuations, and we think that’s what happened this ...
CBS News11d
Monarch butterfly population in Western U.S. nears record 30-year low. Here's what to know.
The number of monarch butterflies spending the winter in the western United States has dropped to its second-lowest mark in nearly three decades as pesticides, diminishing habitat and climate ...