Mark, Rusty, and his classmates, led by presumed teacher Miss Mavis, are touring Washington, D.C. to soak up some history and politics. What happened this past week?

They happened upon a press conference outside the Capitol, led by none other than Ohio State Senator Smalls, now running for Congress. Smalls made several statements on hot-button issues that Mark hotly disagreed with. As Mark did with the senator last year, he openly challenged Small’s statements. Surprisingly, Smalls did not appear to recognize Mark, though I don’t see how you could forget the person who exposed your illegalities and got your butt arrested. And Senator Smalls was even more worried when Mark began exposing that corruption to the attending journalists.

Here is where things ran differently from the Ohio press conference. Instead of getting into a physical altercation with security, Mark played nice and voluntarily left the scene when directed. The security staff also expelled Miss Mavis and the students. It was an overreach, but nobody challenged it.

Mark didn’t even threaten to use his Two Fists O’ Justice! Why this apparent change? Had Jules Rivera been criticized for violence in this strip? There is actually very little of it. Could this decision been based on Mark not wanting anything to happen to the students? Well, they still got chased away.

Anyway, I believe Miss Mavis possibly missed a teaching opportunity when she proclaimed to her retreating students “There goes my politics lesson,” because I think this incident was a good lesson:  A citizen had his say and then the authorities stomped on it. Fortunately, Mark was well enough to make this Sunday nature discussion.

We have another well-conceived title panel, at least as far as the logo is concerned. The horseshoe crab is common up and down the Atlantic Coast and even the Gulf of Mexico. Growing up, I used to see their carapaces on the beaches in Virginia quite a lot. Yes, they can be found along the Potomac River.

The horseshoe crabs are especially abundant on Delaware Bay during Spring mating season, when they appear in the thousands to nest. Apparently, commercial fishing use them as bait, depleting their stock. Their value in medical research lies in an element of their blood called amebocytes, a type of coagulant. After they are bled, they are released to their natural habitat. Unfortunately, the loss of blood makes them more vulnerable and can lead to premature death. There are efforts to find viable substitutes.