| Literature DB >> 11190249 |
Abstract
Coal miners used to take canaries with them into coal mines; more sensitive than humans to poisonous gases, they provided a living early-warning system. Are recent population declines among the world's frogs warning us of an environmental catastrophe to come?Entities:
Mesh：
Year: 2000 PMID： 11190249
Source DB: PubMed Journal: Biologist (London) ISSN： 0006-3347