Despite some uncertainties, the monarch butterfly faces little threat from ... affected by toxin-containing pollen.) In the earlier Nature paper, Cornell entomologist John Losey used a low toxic ...
Monarch's multigenerational migration is legendary — a journey of up to 3,000 miles from Mexico to Canada, undertaken by animals weighing less than a gram. In the United States and southern Canada, ...
Monarch butterflies are important culturally and ecologically across North America ... In the United States and southern Canada, monarchs are ambassadors of nature in people's gardens and symbols of ...
This clip is from the series Wonders of Nature. 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 ...