Portals

They appeared in Ep 2, 1, 4, 10, 16, 17, 20, 22, 24, 26, 28, 29, 36, 31, 37, 38, 39 and 40.

Alex is the only who could see the portals as shown in ep 1 and 2.

In ep 2 there revealed to be a portal in Animalia Library.

In Ep 16 Alex is the only one who can see the portals and Alex maps out the portals in his sketchbook. There was a time was working perfectly which allowed animalians to travel one location to the next instant and they could see the portals then came what they call the Incident which the Core erupted which loses the portal Spore so the Portals to the tunnels became invisible to every Animalians except the Creeper who could see the hidden portals. According to the dark legends about the Creeper he used them to spy and cheat on the animalians. Then one day The Creeper bought a few animalians into the tunnels for a 3-hour tour which only cost a load of Mamoonies but they became lost and they were never seen again.

In ep 20 a portal lead to the Creeper lair.

In ep 22 it's revealed the Animalians take turns to guard the portal as shifts.

In ep 24 The Creeper dream weaver locked up his fellow dreams weaver behind a portal.

In ep 26 The Creeper can lock up portal with a machine.

In ep 28 there is a portal in the catacombs.

In ep 29 The Creeper seem to unable to see certain portals.

Stanley said in ep 39 that many portals aren’t where they used to be and many are locked.

In What the World Needs Now  the portals got shut down by the Creeper during his reign on Animalia. After The Creeper defeat the portals are open again and Zoe along with all of the Animalians can now see them.

The Creeper can lock up portals as shown in episode 26, 33 and Episode 39.

In the human world there are portals, some even in the form of books as shown in ep 1, 20, 39.

Type of Portals

 * Sky Portal (ep 16)
 * Super Portal (ep 20) - there was one in Animalia Library that leads to the Room of Legends.