The Last Great Migration of Monarchs

The migration of monarchs is one of the earth's last great migrations. But around the world, a lot of these great migrations have disappeared or are disappearing due to things that we as people are doing to them and their habitats. Monarch ation is declining too. The last three consecutive years have been the lowest numbers of monarchs ever recorded in mexico. Scientists estimate migratory monarchs have declined by 90%. So if monarchs were people, this would be like losing every person living in the united states, except for those in ohio and florida.