:'( I was brushing my yellow lab and noticed that the brush had tiny yellow eggs in it. My lab also has black spots on his elbows. I have him on revolution already so fleas are out of the question as the culprits. Any suggestions?
Are you sure it wasn't something in the brush before you began the brushing? As for the dark spots on the elbows; that is pretty common. A lot of times it comes from how they sit on hard surfaces.
Bot flies lay little tiny yellow eggs on horses legs - but you'd be able to see them on your lab - and last time I checked labs weren't REALLY horses
“I am only one, but still I am one. I cannot do everything, but still I can do something; and because I cannot do everything, I will not refuse to do something that I can do.” H. Keller
I don't know what it is but this is on the Bot Fly http://en.wikipedia.org/wiki/Botfly I have seen bot fly lava in cats, dogs and in cattle. The last one I seen was in a toy show poodle.