Tolerance.ca
Director / Editor: Victor Teboul, Ph.D.
Looking inside ourselves and out at the world
Independent and neutral with regard to all political and religious orientations, Tolerance.ca® aims to promote awareness of the major democratic principles on which tolerance is based.

The westward spread of zebra and quagga mussels shows how tiny invaders can cause big problems

By Christine Keiner, Chair, Department of Science, Technology, and Society, Rochester Institute of Technology
Share this article
Zebra and quagga mussels entered the Great Lakes in large ships’ ballast water. Now, local boaters and anglers are spreading them into the southern and western US.The Conversation


Read complete article

© The Conversation -


Follow us on ...
Facebook Twitter