North America's freshwater mussels are both impressively diverse and highly imperiled. Nearly 300 species occur in the United States and Canada, and up to 40 species of the hard-shelled bottom dwellers can be found on a single stretch of a clean, swiftly flowing river.
from Latest Science News -- ScienceDaily https://ift.tt/3cgjhZN
via IFTTT
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment