One of nature's epic events is underway: Monarch butterflies' fall migration. Departing from all across the United States and Canada, the butterflies travel up to 2,500 miles to cluster at the same locations in Mexico or ...
Plants & Animals
Sep 18, 2020
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10
New evidence identifies 64 pesticide residues in milkweed, the main food for monarch butterflies in the west. Milkweed samples from all of the locations studied in California's Central Valley were contaminated with pesticides, ...
Ecology
Jun 8, 2020
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The yearly count of monarch butterflies overwintering in Mexico, released today, shows a decrease of 53% from last year's count and is well below the threshold at which government scientists predict the migration could collapse.
Plants & Animals
Mar 20, 2020
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86
Mexico's forests this winter received 53% fewer monarch butterflies, a species that migrates south from Canada and the United States, according to figures published this week.
Ecology
Mar 16, 2020
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The western monarch butterfly population wintering along California's coast remains critically low for the second year in a row, a count by an environmental group released Thursday showed.
Ecology
Jan 23, 2020
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Monarch butterflies are moving south through Texas on their annual autumn migration to overwintering sites in Central Mexico, but millions die in collisions with vehicles while flying low across Texas highways. Monarch numbers ...
Plants & Animals
Nov 5, 2019
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333
A monarch butterfly had just emerged from its chrysalis when Emilie Snell-Rood reached into its cage, grabbed it carefully to take measurements and photographs, then placed it inside a tall and breezy tent. There it would ...
Plants & Animals
Sep 3, 2019
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32
When spotting a butterfly, a common reaction may be to whip out a phone and snap a photo. A team of University of Maine researchers is hoping another response could be to use the phone to log details about areas where butterflies ...
Plants & Animals
Aug 16, 2019
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12
Hand-raising monarch butterflies in the midst of a global extinction crisis, Laura Moore and her neighbors gather round in her suburban Maryland yard to launch a butterfly newly emerged from its chrysalis. Eager to play his ...
Ecology
Aug 13, 2019
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17
The fact that millions of North American monarch butterflies fly thousands of miles each fall and somehow manage to find the same overwintering sites in central Mexican forests and along the California coast, year after year, ...
Plants & Animals
Jul 24, 2019
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