Zubat

Zubat (Japanese: ズバット Zubat) is a dual-type Poison/Flying Pokémon introduced in Generation I.

It evolves into Golbat starting at level 22, which evolves into Crobat when leveled up with high friendship.

Biology
Zubat is a blue, bat-like Pokémon. While it lacks eyes, it has pointed ears with purple insides and a mouth with two sharp teeth on each jaw. A male will have larger fangs than a female. It has purple wing membranes supported by two, elongated fingers, and two long, thin, tails.

Zubat lives in abundance in caves. It has evolved to have neither eyes nor nostrils, it instead navigates through dark environments and tight caves with echolocation. As demonstrated in the anime, it will leave its abode at night with a mass of other Zubat in order to seek prey. During the daytime, Zubat sleeps hanging upside down in caves, forests, or under the eaves of old buildings, avoiding sunlight at all costs. Zubat also gather together in groups during the morning in order to stay warm while they sleep. Daylight causes Zubat to become unhealthy, and prolonged exposure can even burn its skin. However, captured and trained Zubat have been recorded as being much more tenacious in the daytime, even when directly exposed to sunbeams. In colder conditions, Zubat gathers with others of its kind for warmth.

Brock's Zubat
In Clefairy and the Moon Stone, Brock caught a Zubat at Mt. Moon. It later evolved into a Golbat and then into a Crobat during the Johto saga.

Other
In Hassle in the Castle, Dr. Anna uses a Zubat nicknamed Mimi for its Supersonic sound-waves, meant to scan her patients.

In Leading a Stray!, multiple Zubat assisted a Luxio in its efforts to help a Wailmer trapped in the sewers.

Three Zubat appeared in Alola to New Adventure!, under the ownership of Rapp. One of them has since made further appearances in Pokémon the Series: Sun & Moon.

Minor appearances
In The Power of One, multiple Zubat sensed the disturbance caused by Lawrence III.

A Zubat appeared in the Japanese credits of Pikachu's Rescue Adventure.

In Wired for Battle!, a Trainer's Zubat came up as an image in Shingo's laptop.

A Zubat appeared in Take the Lombre Home.

Multiple Zubat appeared in A Six Pack Attack!.

In Who's Flying Now?, a Zubat was featured in the Fortree City Feather Festival.

Multiple Zubat appeared in Destiny Deoxys.

A Zubat appeared in The Ole' Berate and Switch!, under the ownership of a Team Rocket Grunt.

In Once More With Reeling!, a Coordinator's Zubat competed in the Terracotta Contest.

In A Rivalry to Gible On!, multiple Zubat were residents of Mt. Shady.

A Zubat appeared in Battles in the Sky!, under the ownership of a Sky Trainer.

In Lillie's Egg-xhilarating Challenge!, a Zubat was playing in Lillie's garden. It reappeared in The Ol' Raise and Switch!.

In To Top a Totem!, multiple Zubat were flying in the air just as a Psyduck fell from the sky.

In I Choose You!, a Zubat was under the control of Marshadow.

In Securing the Future!, a Trainer's Zubat joined the rest of Alola in showering Necrozma with light so it could return to its normal form.

A Trainer's Zubat appeared in JN049.