Alligator by John Montroll

Diagrams in Dollar Bill Origami by John Montroll
Folded from a $-proportioned rectangle of Unryu

Alligator by Jun Maekawa

Diagrams in Viva! Origami by Kunihiko Kasahara
Wet-folded from a square of double-sided Unryu paper

Crocodile by John Montroll

Diagrams in Origami La Era Nueva by Kunihiko Kasahara
Folded from a square of American foil

Crocodile by John Montroll

Diagrams in Bringing Origami to Life by John Montroll
Folded from a square of animal-patterned origami paper

Crocodile by Jozsef Zsebe

Diagrams in Zsebe Jozsef by Jozsef Zsebe
Folded from a square of origami paper

Crocodile by Lionel Albertino

Diagrams in Safari Origami by Lionel Albertino
Wet-folded from a square of double-sided mulberry paper

Crocodile by Patricio Kunz Tomic

Diagrams in BOS Magazine 291
Diagrams in Chilean Origami Convention 2009
Diagrams in Colombian Origami Convention 2009
Diagrams in Origami Worldwide by John Montroll and Brian K. Webb
Diagrams in Pajarita Magazine 133
Folded from a square of bubble-texture paper