A ray can sense your heartbeat through the sand.
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Sea turtles have been swimming these waters for over 100 million years - before the dinosaurs disappeared, before the continents settled into their current shapes. They didn't survive by being lucky. They survived by being very, very good at what they do.
Rays glide through the deep like living kites, detecting the heartbeat of a creature buried under the sand through electroreceptors built for a world without light. Their entire skeleton is made of the same flexible cartilage that shapes your ears.
Shells and Shadows is your field guide to both of them.
A resting turtle can stay submerged for up to seven hours. But when stressed or frightened, the body burns through oxygen much faster, forcing the turtle to surface more often. A trapped turtle panics, burns through its oxygen quickly, and can drown in minutes. This is one reason fishing nets are so dangerous for them.
Fused to the spine and ribcage, covered in scute plates as unique as fingerprints. No two turtles look exactly alike - and it's not a backpack the turtle can climb out of.
Because every object in the ocean interacts with the surrounding electrical field differently, rays may also detect obstacles, navigate unfamiliar terrain, and read changes in their environment that would be completely invisible to any other sense. Scientists are still learning the full range of what this ability makes possible.
A ghost net is a fishing net lost or abandoned at sea that continues drifting through the ocean, catching and killing marine animals long after anyone stopped using it. Hundreds of thousands are currently drifting through the world's oceans - nearly invisible underwater, still catching whatever they touch.
The Lost Years - When sea turtle eggs hatch, the hatchlings dig out of the sand together, scramble to the water, and swim away alone. No parent is waiting. No parent is coming. A young sea turtle enters the ocean with nothing but instinct and spends its first several years drifting in open ocean currents, far from shore, largely invisible to researchers. Scientists call this period "the lost years." You are a young sea turtle at the start of that journey. Describe your first days in open water - what you sense, what you follow, what the ocean feels like when it is the only thing in every direction.
One of 16 writing prompts inside - each launched by a fact that makes you stop.
Shells and Shadows opens with field-guide facts on both animals - their navigation, biology, senses, and survival. Then come original stories: Timmy the sea turtle doing what his species has always done, and Riley the manta ray moving through water most animals never reach. Did You Know boxes woven into each story at the exact moment they land hardest. Sixteen writing prompts, word searches and crosswords built from real science terms, and coloring pages throughout. There's something in here for every kind of reader - and no wrong way through any of it.
Buy on AmazonEvery title in the Into the Blue series stands alone. Any one is a good first book. But they're built to be collected.
Exploring the Wonders of Sharks and Dolphins
Exploring the World of Octopuses and Cuttlefish