Comic Title: Adventures of Rex, the Wonder Dog #23
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: Sep/Oct 1955
Approx. On Sale Date: July 5, 1955 Copyright Date July 3, 1955
Source: Library of Congress, Periodicals 1955
Until 1958 DC did not report actual on sale dates to the copyright office
The publication dates listed in LoC records are NOT release dates.

Frequency: Bi-monthly
Cover Price: $0.10
Page Count: 32
Editor: Julius Schwartz

Title: "The Peril in the Jungle"
Pages: 10

Feature(s):
Rex the Wonder Dog (of Earth-1)

Writer: Robert Kanigher
Penciller: Gil Kane
Inker: Bernard Sachs

Feature Character(s)

• Rex the Wonder Dog (last appearance in Adventures of Rex, the Wonder Dog #22; next appearance in Adventures of Rex, the Wonder Dog #23)

Supporting Character(s)

• Danny Dennis (last appearance in Adventures of Rex, the Wonder Dog #22; next appearance in Adventures of Rex, the Wonder Dog #23)
• Major Dennis (last appearance in Adventures of Rex, the Wonder Dog #22; next appearance in Adventures of Rex, the Wonder Dog #24)

Villain(s)

• A boar, several vultures, and some fish (no further appearances)

Synopsis:
Danny and Rex accompany Major Dennis to the site of some cave paintings. Before they arrive, their jeep is attacked by a boar and a flock of vultures. An avalanche causes them to abandon the jeep and take cover in the river. They are then attacked by the fish in the river. Once they reach the cave, they discover the reason for the attacks. The cave paintings reveal that Rex's ancestor battled the animals in the past. The animals were trying to settle an old grudge. When they leave the cave the boar returns, but once again Rex defeats it.