ඉබ්බන්ට කටුවක් ලැබුනු ඔයා නොදන්න අපූරු කතාව | How turtles got their shell

ඉබ්බන්ට කටුවක් ලැබුනු ඔයා නොදන්න අපූරු කතාව | How turtles got their shell
Myth of the turtle shell
Long ago, according to ancient myth, turtles were once soft-bodied creatures who moved swiftly across the land. But one day, a great battle erupted between the animals of the earth and sky. To protect themselves, the turtles sought refuge from the chaos, but found no safe haven. Seeing their vulnerability, the wise Earth Spirit took pity on them. She whispered to the ground, which rose up and formed a hard, protective shield around the turtles' backs. This gift of the shell made them slow but sturdy, allowing them to carry their home wherever they traveled, forever safe within their fortress of bone and armor.
Science story
The evolution of the turtle's shell is a fascinating story that spans millions of years. Scientists believe that the turtle's shell originated from the broadening of the ribs and the fusion of bones over time. The earliest known ancestors of turtles, such as *Eunotosaurus*, lived around 260 million years ago and had widened ribs, but not a full shell. Over millions of years, these ribs gradually expanded and began to fuse with the vertebrae and other bones, forming the hard, bony plate that we now recognize as a turtle's shell.
The shell's development likely began as a way to protect vital organs and provide stability for digging. Over time, this adaptation gave turtles a significant survival advantage, allowing them to better defend themselves from predators and adapt to a variety of environments. The lower portion of the shell, known as the plastron, evolved first, followed by the upper portion, or carapace, eventually enclosing the turtle in a complete protective barrier. Through natural selection, this distinctive feature has helped turtles thrive across land, sea, and freshwater environments.
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