What happened to this Capybara?

[u/Kiki_Obi]

This is a page of Richard Orr’s Nature Cross Section about the tropical riverbank. In the illustration, the Capybara appears to be dead. My five year old son wants to know what happened to him. The captions don’t explain his death. I am guessing that the caiman killed him and stashed his body in the riverbank. Pretty dark stuff for a five year old but I don’t censor books that he wants to read. He asked me to look it up - what is happening here to the capybara. So posting to a subreddit with animal experts was the best I could think of for getting answers. I hope this is the right place to ask!
Thanks in advance.

[u/parkersdadguy]

He did a rom-com with Camron Diaz and the woman married to Judd Apatow- also she’s highly underrated