Amphibian mounts

Frog mounts were first added to World of Warcraft with Battle for Azeroth and can be gotten from Gottum in Nazmir.

Drop

 * Arboreal Gulper drops from Humon'gozz

Vendor

 * Yellow Marsh Hopper is sold by Gottum
 * Green Marsh Hopper is sold by Gottum
 * Blue Marsh Hopper is sold by Gottum