He cut off its heads, but he had to burn them so they don't come back{he had help from his nephew]. After he killed it, he dipped his arrows in its blood so they are so poisonus that they can kill someone just by scratching them.
For every head cut off, the hydra gows two more. To counteract this, Heracles burned each stump of a head.
Heracles defeated the Hydra by cutting off its heads and cauterizing the neck stumps to prevent them from regrowing.
Lernean Hydra.
No, Heracles did not kill his father Zeus.
When Hercules was a baby, he killed two snakes that Hera sent to kill him. He killed the Nemean lion, the hydra, and many other monsters. He also killed his wife and children because Hera made him go crazy.
Heracles
For every head cut off, the hydra gows two more. To counteract this, Heracles burned each stump of a head.
Heracles defeated the Hydra by cutting off its heads and cauterizing the neck stumps to prevent them from regrowing.
By most accounts, Lerna was near one of the entrances to the Underworld and the Hydra was placed to guard it.In later accounts, the Hydra was raised by Hera specifically to kill Heracles, and it's placement was more incidental.
Lernean Hydra.
Hercules/Heracles killed the Nemean Lion and the Hydra.
Cuts of it's head one by one and used his burning hot club to seal the neck so no new heads can grow.
The Lernean Hydra is killed by Heracles in his second of twelve labors. However why the Hydra is killed is never fully explained.
heracles fought him in a battle so heracles would be one but i also know that the hydra fought with him in battles
In Greek mythology, the Hydra was a serpent-like creature slain by the hero Hercules as one of his Twelve Labors. After its defeat, the Hydra was placed in the sky as a constellation to honor the mythological tale of Hercules' triumph over the beast.
He fought a hydra, a lion, a horse, a cerberus, a crab and a pig.
Hercules with the help of his nephew Iolau. However the fight may still be deemed fair as the Hydra had the aid of Cancer (the crab.) Through a complex series of later events it is the venom of the Hydra that eventually kills Hercules.