The Call of the Wild by Jack London

Buck staggered over against the sled, exhausted, sobbing for breath, helpless. This was Spitz’s opportunity. He sprang upon Buck, and twice his teeth sank into his unresisting foe and ripped and tore the flesh to the bone.

The Colors of Space by Marion Zimmer Bradley

One by one he picked out the constellations. Aldebaran swung on the pendant chain of Taurus like a giant ruby. Orion strode across the sky, a swirling nebula at his belt. Vega burned, cobalt blue, in the heart of the Lyre.