|First appearance||The Underworld Bride|
Rhinoceros Dolphins are fabled by fisherman to have two dorsal fins. They made their first and only appearance in The Underworld Bride.
They are about as big and long as normal dolphins They have sort of a horn-like nose, like a dolphin. They also have two dorsal fins. They are yellowish-greenish.
The dolphins are used for practice in Zak's cryptid power training. According to Ulraj, they are natural show offs and love to dance. They might just be a mutation.
Giglioli's whale is a whale with two dorsal fins. Like the Rhinoceros dolphins. It is unknown if they will appear in the series. Most likely not.
- Fish: Ulraj gets back at Zak by throwing a fish into the water that makes the dolphins go after it.