Same story over and over. timesofindia.indiatimes.com/science/in-1...
In 1974, Spain imported two tons of American red crayfish for aquaculture; 50 years later, the species cannot be removedFifty years after two tons of American red crayfish were legally shipped into southern Spain to boost the rural economy, scientists have confirmed that the aggressive invasive species is in the Guadal...timesofindia.indiatimes.com