Trinto

From Tardis Wiki, the free Doctor Who reference

Trinto were horse-like creatures on the planet Xirrinda. Gellen watched them from her hotel veranda and filmed them as they ran through the forests. Instead of four legs though, they had six and were usually prey to Sharkwolves that prowled nearby. Gellen described a cow-like noise that they made. They began to stampede when the Rain Of Terror arrived. (NSA: Rain of Terror)