Doonesbury by Garry Trudeau for July 23, 1976
Transcript:
Mike: Bernie, what is it that Nessie is supposed to eat? Bernie: Well, there's not much vegetation in the Loch, so most likely she feeds off of the salmon and trout. However, it is thought that at one time she might have preyed on humans. Listen to this account of St. Columbia's encounter with the creature in 565 A.D... "When he beheld the beast attacking his swimming companion, the saint shouted, 'Go thou no further!' the monster was terrified, even though Christianity was relatively new to the area." Mike: So she switched to fish? Bernie: Wouldn't you?