Goat
From Memory Alpha, the free Star Trek reference
The goat is a mammalian hoofed quadruped native to Earth.
Zefram Cochrane referred to himself as a Judas goat, when he was convinced to lure the Companion into a trap set by Spock and James T. Kirk. (TOS: "Metamorphosis")
In 2365 when the Bringloidi had to evacuate their planet, they took their goats and sheep with them aboard the USS Enterprise-D. (TNG: "Up The Long Ladder")
