Grey squirrels are an invasive species in the UK, introduced from North America in the 1870s. They pose a problem for wildlife including endangered red squirrels, which they outcompete.
Source: wiktionary
Ranked by relevance and common usage.
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
1 total sentences available.
Grey squirrels are an invasive species in the UK, introduced from North America in the 1870s. They pose a problem for wildlife including endangered red squirrels, which they outcompete.
Source: wiktionary