Why are monarch butterflies disappearing? Scientists are racing to find answers. These iconic orange, black, and white butterflies flutter across much of the North American continent, and are a familiar summer sight in many backyards. But in the last twenty years, the monarch butterfly population has been decreasing. Why? Skilled science writer Rebecca E. Hirsch takes readers on a quest to discover what scientists already know-and what they’re hoping to learn. In addition, she offers tips about what monarch lovers can do to make a difference, from planting a butterfly garden to getting the word out about harmful pesticides to taking part in citizen science projects.
Köp den här e-boken och få 1 till GRATIS!
Språk Engelska ● Formatera EPUB ● ISBN 9781541523227 ● Utgivare Lerner Publishing Group ● Publicerad 2018 ● Nedladdningsbara 3 gånger ● Valuta EUR ● ID 5586303 ● Kopieringsskydd Adobe DRM
Kräver en DRM-kapabel e-läsare