Ever wonder why sea turtles are called what they are? Unlike some animals with confusing or misleading names (looking at you, horned toads — which are actually lizards), sea turtles are one group where the names actually make sense.
Sea turtles get their names from very distinct traits — whether it’s their appearance, the person who discovered them, or even the color of their body fat (yes, really). Let’s break down what each sea turtle species is named after and why.
Loggerhead Turtle
Why the name?
Loggerheads are known for their oversized, “blocky” heads. These large heads aren’t just for looks — they house strong jaws capable of crushing hard-shelled prey like crabs and conchs. Their big head-to-body ratio is what earned them the name “loggerhead,” a term also shared by a bird called the loggerhead shrike.
Leatherback Turtle
Why the name?
Unlike other sea turtles, leatherbacks don’t have a hard, bony shell. Instead, their backs are covered in thick, leathery skin over flexible connective tissue and small bones. That soft, leather-like appearance gives the leatherback its name.
Hawksbill Turtle
Why the name?
With their sharp, curved beaks, hawksbill turtles resemble birds of prey — especially hawks. This unique beak helps them reach into coral crevices to feed on sponges and other invertebrates.
Flatback Turtle
Why the name?
True to their name, flatbacks have a low, smooth, and flat shell — a stark contrast to the more domed shapes seen in other species. This flattened appearance makes them easy to identify.
Kemp’s Ridley Turtle
Why the name?
This turtle was named after Richard Kemp, a naturalist from Key West who was among the first to study them. The “ridley” part is less clear — some believe it might have come from the word “riddle” because so little was known about them when they were first discovered. For a long time, scientists didn’t even know where they nested or why they sometimes laid eggs in large groups.
Olive Ridley Turtle
Why the name?
The “olive” part refers to the olive-green hue of their shell. Like the Kemp’s ridley, they also carry the mysterious “ridley” label. These two turtles are the only species in the Lepidochelys genus, which adds another layer of uniqueness.
Green Turtle
Why the name?
You might think green turtles are named for their shell color — but they’re not! Their shells range from brown to gray. The real reason? Their body fat has a greenish tint, thanks to their mostly vegetarian diet of seagrasses and algae.
Sea Turtles of Sanibel & Captiva
On the beaches of Sanibel and Captiva, loggerheads are the most frequent nesters. You’ll occasionally spot a green turtle nest, while leatherbacks and Kemp’s ridleys are rare visitors.
So next time you hear a sea turtle’s name, remember: it’s more than just a label — it tells a story about what makes each one unique.
