The story of Pulau Anak Tikus, which translates to "Baby Rats Island" in Malay, is a journey through nearly half a billion years of Earth's history. Long before the time of the dinosaurs, this area was part of a vast, shallow sea where ancient gastropods and cephalopods—the distant ancestors of modern snails and the nautilus—thrived in the warm Paleozoic waters. Over millions of years, their remains were buried and fossilized within the Setul Formation, becoming part of the oldest limestone sequences in Malaysia. For eons, these secrets remained hidden beneath the waves until powerful tectonic forces and the relentless erosion of the sea began to carve away a softer zone of an ancient headland, eventually isolating this tiny islet and exposing its fossil-rich heart. Today, it stands as a cornerstone of the Langkawi UNESCO Global Geopark, where the silent stones narrate a tale of biological evolution and geological transformation that began over 480 million years ago.