Perfesser Cosmo Fishhawk is, according to the (alarmingly detailed) table in the Shoe Wikipedia page, an osprey, and ospreys, according to the (about as detailed as you’d expect) osprey Wikipedia page, sight their prey “when the osprey is 10–40 m (33–131 ft) above the water, after which the bird hovers momentarily and then plunges feet first into the water.” So it seems kind of odd that the Perfesser would be scared to skydive, though I guess he gets most of his sustenance from Roz’s diner and mindlessly eating potato chips in front of the TV, so maybe he’s just really out of practice.
Sometimes Dagwood is portrayed in this strip as a true gourmand, someone who, while not being a food snob by any means, has strong and nuanced opinions about different restaurants, dishes, and cuisines. And other times he’s just portrayed as being an indiscriminate glutton who’ll gobble down whatever’s put in front of him, unable to distinguish the delicious from the disgusting. So you may be wondering: is it a terrible burden, caring more about consistent characterizations in newspaper comic strips than any of the people actually producing them do? And I can tell you that yes, yes it is.