For 28 years, the Xerces Society for Invertebrate Conservation has counted monarch overwinter populations along the ...

The number of monarch butterflies in California is in sharp decline this year. This is the second-lowest population recording ...

They are also widespread in Mexico and parts of Central and South America. In 2022, the International Union for Conservation of Nature listed migratory monarch butterflies as endangered.

Monarch butterflies are among the most ... our focus has been on the butterflies’ recent health and how their numbers are changing through time. In our view, some parts of the actions that have been ...

Monarch butterflies have declined 80 percent or more in recent decades Each year, eastern monarchs embark on a migration spanning thousands of miles and multiple generations to overwintering ...

On Tuesday, the Butterfly Pavilion in Westminster and the Government of Mexico are joining forces to protect one of North ...

Ask pupils to use online sources and books to discover the parts of the world in which monarch butterflies are normally found. The children could shade these areas on a world map, perhaps using a ...