Manatees from Florida occasionally venture as far as Houston or Connecticut- about the same time that one was seen in Texas, another was seen in Connecticut, and moved back to Florida. It was tagged, and it has made the trip twice up north, and gets shipped back.
I don't know where Mason park is, but in the early 1970s, I was on Braes Bayou west of Fondren at night, and we observed what we thought were small turtles on the concrete walking in circles- approximately 10 of them, walking in a big circle. We watched for perhaps an hour from the top while we talked, and then went down for a closer look- they were wood roaches, and they were holding their wings up perpendicular to their bodies and flapping them as they walked in a circle of perhaps a meter in diameter. Never seen such behavior before or since.
The san francisco aquarium used to make a joke about everything being bigger in Texas, and claimed that the largest freshwater fish in the world were alligator gar from San Jacinto bay. In the 1960s there was a catfish restaraunt on the eastern end of lake steinhagen that had a mounted alligator gar that was between 8 and 10 feet long.