The Plaidypus

The Plaidypus is a type of cryptid creature from Gravity Falls. It is a monotreme like animal that resembles a platypus, except their fur is red and black striped like flannel, making it sought after by lumberjacks. It is also said to be immune to mosquitoes.

Before Series
Referenced by Stanford Pines in the real book adaptation of his third journal. While Ford and his assistant Fiddleford were traveling to Crash Site Omega to find parts to power the portal, they came across this creature while taking a lunch break, when it took a bite of Fiddleford's sandwich and scampered back into the brush.

According to Stanford, these creatures were thought to be a myth and were rumored to be what all flannel was made from.

Books

 * Journal 3

Trivia

 * Known as the "Source of all Lumberjack Jackets".
 * Ford notes that they smell like bacon and maple syrup
 * Young plaidypus' only have horizontal stripes and gain the vertical stripes when mature.
 * Their pelt is thought to be warm, impervious to mosquito bites, and fashionable every 10 years or so.

Reference

 * 1) ↑ Gravity Falls: Journal 3 by Disney Book Group. July 26, 2016. Published by Disney Press. Page(s) The Plaidypus. ISBN: 978-1484746691.