A New World: Book one of the Animalia series

It's been about 1000 years since the end of humanity, and only 95%. Those who weren't taken by the countless disasters that took place during one dreadful week, including, but not limited to a meteor shower, plague, and radiation spreading all across the planet were mostly Ok. I said mostly. They were alive, but not the same. People developed animal features like tails, wings or claws. Even though about every single thing was in ruins, people learned to hunt, scavenge, or forage. Everyone did something like those 3. Curiosity may have killed the cat but it sure won't kill 15-year-old Cymric. Add 2 hunters, a forager, and a princess, what could possibly go wrong? Just about everything. This quest to find out what really happened to humanity, and not the bedtime stories they were told, will sure be a rollercoaster.