During their annual migration to wintering sites in Mexico, monarch butterflies encounter dangers ranging from cars and trucks to storms, droughts and predators. A study has found evidence that these ...

Scientists believe that increased plantings of Asclepias curassavica, commonly known as ‘tropical milkweed’, in the U.S. South has prompted a population of formerly migrating Monarchs to overwinter.

Some monarch butterfly researchers are questioning some counties’ recent decision to ban tropical milkweed sales as a way to protect the state’s dwindling populations of the iconic orange-and-black ...

“I planted a milkweed plant a few weeks back. It’s growing well but it has developed an infestation of small creatures, maybe one-sixteenth of an inch long, who also leave a shiny reflective spotty ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. In recent years, the monarch butterfly population has decreased by ...

In 2020, around Thanksgiving, a total of fewer than 2,000 monarch butterflies were counted at around 250 overwintering sites where they have traditionally been counted in the state of California. A ...