Jump on their heads so they faint.
Just 1
In mythology, hydras are mythical creatures with multiple heads. In the natural world, hydras refer to tiny, freshwater creatures called hydrozoans. These tiny organisms are part of the animal phylum Cnidaria.
Greek Mythology: Hydras, Lastrygonian Giants, Hellhounds, Cycopes, Furies, Minotaur, Manticore, Sirens, Scylla, Charybdys, Medusa Hindu Mythology: Shurpnakha(demoness), Ravana(evil king)
There is no scale. I have already beat it.
you go into the underwater space and go all the way down to the bottom where the giant clam is. next to it is a doorway, go into it. then, the hydra is there. Every time it slams one of its heads down. jump on top of them one by one until they are all asleep. you can go to its body now, run across and you'll get the scale.
The hydra has great regenerative powers where if you cut off one of its head it will replace it with 2.
To get the hydra's scale you have to jump on its heads when it tries to bite you. Keep doing this until you have knocked out all the heads. Once you've done that go under the hydra and get the scale.
The hydras are gone.
Hydras are mythical creatures with multiple heads, typically depicted with nine heads. In mythology, the significance of their multiple heads is that when one head is cut off, two more grow in its place, making them nearly impossible to defeat. In biology, this feature is not seen in real animals, but it symbolizes the regenerative abilities and resilience of the hydra in popular culture.
there is not even hydras on clubpenguin
Hydras do not have a skeleton. They are multicellular organisms that belong to the phylum Cnidaria and are characterized by a simple body structure without bones or hard structures. Hydras have a flexible body made up of a layer of cells surrounding a central digestive cavity.
The hydra is underwater in Posidons temple/house. Once you get inside the house there is a big "pool". You can go to the one area and there is an opening. The hydras at the end of a maze underwater.