Seadra is a blue, seahorse-like Pokémon. It has a long snout and a two fin-like ridges curving over either side of its head. Its belly is covered with rough, cream-colored scales. Seadra's lower pectoral fins have sharp, pointed, cream-colored tips that exude venom. It also has a large, coiled tail.
Seadra can swim in any direction while facing forward by rapidly flapping its fins and tail. It catches its prey by spinning its body to create large whirlpools. When its prey is exhausted, Seadra swallows it whole using its long snout. Seadra's venom is toxic enough to induce fainting in humans, but is prized among practitioners of traditional medicine.
Seadra makes its nest by either wriggling between or anchoring itself to branches of coral under the ocean. After a female Seadra gives birth, the male Seadra will take care of the young. It is markedly vicious, and will mercilessly attack those who venture near its nest.
Seadra's first appearance was under the ownership of Fergus and was one of the Pokémon that were captured and cloned by Mewtwo in Mewtwo Strikes Back. The Seadra clone is seen again in Mewtwo Returns.
Seadra, a Dragon Pokémon. The evolved form of Horsea. Seadra has a violent temperament, and the quills that cover its body can render its victims unconscious.
Seadra, the Dragon Pokémon. It is known for its powerful disposition but possesses both strength and speed.
In the manga
Seadra in Pokémon Adventures
In the Pokémon Adventures manga
Silver had a Seadra as a part of his team, although it was not shown at the time. During the events of Volume 9, Silver secretly sends Seadra to Gold via trade for his Poliwhirl, triggering Seadra's evolution into Kingdra, upon which it was finally shown attacking Sudobo.
In Sea Sea Seadra, A Seadra attacked Bill as he made his way through Viridian Forest. It managed to suck him into a Whirlpool, but it was caught by Yellow with the help of Pika. She released it after she healed it.
Seadra sleeps after wriggling itself between the branches of coral. Those trying to harvest coral are occasionally stung by this Pokémon's poison barbs if they fail to notice it.
Seadra generates whirlpools by spinning its body. The whirlpools are strong enough to swallow even fishing boats. This Pokémon weakens prey with these currents, then swallows it whole.
The poisonous barbs all over its body are highly valued as ingredients for making traditional herbal medicine. It shows no mercy to anything approaching its nest.
Seadra is based on a seahorse, though its ability to shoot ink resembles that of a squid. The fact that it is known as the Dragon Pokémon might be a reference to leafy sea dragons. Its large, spiky, poisonous fins may be inspired by the lion fish.
Name origin
Seadra may be a combination of seahorse and dragon or hydra (a mythological sea creature).