In high-latitude and high-elevation localities across the world, glacial ice is shrinking, melting, retreating. As this occurs, objects formerly trapped in the ice are deposited on the suddenly-exposed ground surface.
In ecological terms, a corridor is a pathway of natural habitat between two larger patches of habitat. Animals can use corridors to travel from one living space to another. As more and more space is developed, we are sacrificing these ecologically crucial pathways. Here’s one reason that corridors matter: