Hippopotamus by Fabian Correa

Diagrams in Bolivia Origami Convention 2019
Diagrams in Origami USA Convention 2014
Wet-folded from a square of cardstock

Hippopotamus by John Montroll

Diagrams in Bringing Origami to Life by John Montroll
Wet folded from a square of Canson art paper

Hippopotamus by Jose M. Herrera

Diagrams in Czech Origami Convention 2012
Diagrams in Origami USA Convention 2012
Diagrams in Pajarita Magazine 119
Wet-folded from a square of 160gsm Canson art paper

Hippopotamus by Jozsef Zsebe

Diagrams in Fold Line by Jozsef Zsebe
Wet-folded from a square of 160gsm Canson art paper

Hippopotamus by Jun Maekawa

Diagrams in Origami La Era Nueva by Kunihiko Kasahara
Each folded from a square of origami paper

Hippopotamus by Leong Cheng Chit

Diagrams in BOS Magazine 230
Wet-folded from a rectangle of mulberry-foil

Hippopotamus by Lionel Albertino

Diagrams in Safari Origami by Lionel Albertino
Wet-folded from a square of 160gsm Canson art paper

Hippopotamus by Makoto Yamaguchi

Diagrams in Four Seasons Origami Encyclopedia by Makoto Yamaguchi
Diagrams in Fun Origami World by Makoto Yamaguchi
Folded from 2 squares of origami paper

Hippopotamus by Marc Vigo Anglada

Diagrams in Pajarita Magazine 137
Folded from a square of duo origami paper

Hippopotamus by Ondrej E. Cibulka

Diagrams in Origami 2 by Ondrej E. Cibulka
Folded from a square of speckle-design paper