Tapir was a male RainWing who was mentioned in The Hidden Kingdom. He died in NightWing captivity after intentionally starving himself to death, as he refused to eat the rotting, diseased meals the NightWings provided for the captured RainWings. He was mentioned several times by Kinkajou in The Hidden Kingdom.
Tapir was briefly mentioned when Glory asked Mangrove about the missing RainWings. Mangrove claimed that Tapir was the oldest of the missing dragons, roughly 110 years of age. Tapir's age shows RainWings can grow to be much older than dragons from other tribes, most likely because RainWings have no wars to die from.
While imprisoned by the NightWings, Glory was told by Kinkajou that the food the RainWings were brought was disgusting and rotten, and that Tapir eventually let himself starve to avoid having to eat the carrion. Later, when defending Glory's decision to challenge Queen Magnificent, Kinkajou mentioned that Tapir, Bright, and Orangutan had already died; most of the tribe still didn't believe her, but some, such as Tamarin, did.
- Tapir was one of the oldest known dragons in the series with a confirmed age (besides Darkstalker and Foeslayer).
- He was the oldest RainWing to be kidnapped by the NightWings.
- Tapir was one of only a few dragons that have been known to have led a longer life. Tui T. Sutherland confirmed that dragons live to about 150 years of age before dying of natural causes.
- Tapir was the second dragon to have committed suicide, the first being Horizon.