Swoosh! A ten-foot spiral tooth breaks the surface of the Arctic Ocean, glinting in the pale winter light. It belongs to a whale that dives almost a mile straight down, navigates pitch-black water with sound, and has no back fin so it can glide silently under the ice. It's a narwhal, and it's one of the most extraordinary animals on the planet. If your child loves narwhals, this book takes that fascination somewhere truly remarkable. Did you know a narwhal's tusk has millions of nerve endings that can sense the temperature and saltiness of the water around it? That their heart slows from 60 beats per minute to just 10 during a deep dive? That they hide from orca attacks by squeezing into channels beneath the ice that are too narrow for the killer whales to follow? "The Nature Kid's Guide to Narwhals" takes curious kids ages 7–12 deep into the frozen Arctic world of one of Earth's most mysterious creatures. How does a narwhal find food in total darkness nearly a mile underwater? Why do males cross their tusks at the surface in a showdown called tusking? What makes narwhals and belugas the only two members of their entire whale family? Your child will be sharing facts before they finish the first chapter. Short, punchy sentences and jaw-dropping surprises fill every page. From pods of a thousand narwhals gathering in summer bays, to mothers nursing calves in some of the coldest water on Earth, to males floating at the surface with tusks pointing straight up like living unicorn horns, every page brings a new wonder. A book for every kid who loves narwals and other amazing animals. About 80,000 narwhals swim the Arctic waters near Canada and Greenland, and the ice they depend on is disappearing. Once your child discovers just how extraordinary they really are, they'll want to help make sure these unicorns of the sea are around forever. Thousands of young readers have explored the Nature Kids Guide series. Dive in — the Arctic is waiting.