The startler

The startler is an easily startled animal.

Anatomy
The Startler likes being startled, is easily startled, and loves startling other creatures. It is native to The Island of Moof.

Hobo Jebidiah and his friend the Startler
When Hobo Jebediah was a child, he was given a pet startler. All Jebidiah Hobos were given a pet Startler at infancy. It is said that the first Jebediah Hobo rescued a startler from a herd of startled bison.