It's still Heartworm Month until Saturday!

This article from Phys.Org does an excellent job explaining how heartworm disease works, how heartworm prevention works, how heartworm disease is treated, and finally (this is a big one) why it's important to test your pets periodically even if they take heartworm prevention every 30 days like clockwork. In some parts of the country (notably the Mississippi River delta), pet owners are actually encouraged to test their pets every six months, due to the emergence of heartworm strains resistant to the usual preventative medications.

At Phys.Org, "Heartworm is a concern for cats, dogs, and even ferrets."

And in case you forgot... here's what a real, honest-to-goodness heartworm looks like.