Mosquitoes and other insects, however, provide a vital part of the food web for larger predators such as this frog in a bog in Maynard, Massachusetts. As in most wetlands, frogs are sentinel species, indicators of the health of a bog.

Photograph by Rachel Castagnino, My Shot
Our media can be used in a variety of contexts—from media spotlights to encyclopedic entries to lessons. From this page, check out the different ways you can use this .

Other Pages That Use This Item

bog Encyclopedic Entry

Best For
6 - 12 and up

Geography, Science

Appropriate For

  • Educators
  • Families
  • Students

A bog is a wetland of soft, spongy ground consisting mainly of partially decayed plant matter called peat