Claim to fame: These orange-and-black butterflies are well-known for their eye-catching color and for their fascinating migrations each September. Species status: Monarch butterflies are found ...

Colony estimates at central Mexico overwintering sites indicate that monarch butterfly (Danaus plexippus) populations have declined over the past two decades. Among the leading causes of this ...

Monarch butterflies (Danaus plexippus) use their internal clock and the sun to guide them 4,000 kilometers south on their annual fall migration from eastern North America to central Mexico. Scientists ...

During 2013 – 2014 seven monarch butterfly (Danaus plexippus) colonies (3 in Michoacán, 4 in Mexico) were registered throughout a total of 0.67 hectares. According to a monitoring carried out by ...

Nov. 19 (UPI) --New research suggests monarch butterfly caterpillars, Danaus plexippus, get hangry when there aren't enough milkweed leaves to share. As many parents are acutely aware, caterpillars ...

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