Discover the fascinating life of the Rossel Island Mosaic-tailed Rat (<i>Hyomys goliath</i>), a unique rodent thriving in the lush rainforests of Papua New Guinea. This medium-sized, nocturnal creature plays a vital role in its ecosystem as a seed disperser, supporting forest regeneration while facing vulnerabilities from habitat loss. Uncover the intriguing behaviors, diet, and conservation challenges of this lesser-known species that embodies the rich biodiversity of its tropical home.