Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages/Funny

The Utahraptor vs. Astrodon image.
The author gushing about the dinosaurs he specializes in (Tyrannosaurus Rex and its relatives):

"Unquestionably the coolest, most spectacular of all dinosaurs - indeed, of all living things in the history of the Earth - is Tyrannosaurus Rex. (Okay, I'm biased. T. rex and its closest kin are my professional specialty, and it's been my favorite dinosaur since I was a kid.) But really - it even has the best name, which translates as 'king of the tyrant lizards'!"

"If a T. rex-size Therizinosaurus tried [Wing-Assisted Incline Running], the tree would probably collapse."
Oddly humorous are the implications of birds being dinosaurs that the author brings to light, probably because so many other books tend to differentiate between birds and non-bird dinosaurs, even those that otherwise acknowledge the fact. The smallest dinosaur is... the bee hummingbird. The fastest dinosaur is... the peregrine falcon. There were marine dinosaurs: hesperornithines! Lambeosaurines may have been the most specialized sound makers of all dinosaurs... except for songbirds. And dinosaurs didn't go extinct!
The author criticizing terms like "sauropod" and "ornithopod" for being inaccurate or imprecise.
"... a great explosion of specialized, sophisticated (and to tyrannosaurs - tasty!) iguanodontians called Hadrosauroidea."
On the fighting dinosaurs fossil: "Because the nearest veterinarian was 80 million years away, the raptor would have almost certainly died from that wound."
The very fact that the scientific data table at the end of the book contains exclamation marks is a Crowning Moment of Funny. Special mention goes to the little note on the etymology of Torosaurus:

"Perforated lizard (not bull lizard!)"

Possibly topping everything else is the illustration on the last page of the book. Good God, the illustration on the last page of the book...