Bulbasaur

Bulbasaur is a fictional Pokémon from the Pokémon series of video games. Bulbasaur is numbered 001 in the National Pokédex, making it the first listed, and is a first stage Pokémon (followed by Ivysaur and then Venusaur).

Bulbasaur is a grass Pokémon. It usually weighs around 6.9 kilograms (15.2 lbs) and has a height of 0.7 meters (2'4").

Bulbasaurs have "bulbs" on their back which grows steadily larger as the Bulbasaur mutures. This bulb contains a seed which uses photosynthesis to supply Bulbasaur with energy. Its bulb is also used to store the energy which the seed absorbs, which can be used when it is neccasary. It is assumed that when a Bulbasaur collects enough energy in its bulb, it will evolve into an Ivysaur.

A Bulbasaur is a starter option in Pokémon Red, Pokémon Blue, Pocket Monsters Green, and, more recently, Pokémon FireRed and LeafGreen. A Bulbasaur can also be recieved as a gift in Pokémon Yellow.

Trivia

 * The bulb on Bulbasaur's back was, according to its Pokédex entry in Red/Blue/LeafGreen, planted at birth. Throughout its evolutions, the bulb will eventually bloom into a large flower.
 * Bulbasaur uses its bulb to store extra energy. This makes it possible for Bulbasaurs to survive for days without eating.
 * Bulbasaur bulbs contain a nutritional seed which Bulbasaur can withdraw energy from in order to grow. The seed gets energy by soaking up the sun's rays (photosynthesis).