SANDSHREW's body is configured to absorb water without waste, enabling it to survive in an arid desert. This POKéMON curls up to protect itself from its enemies.
Sapphire:
SANDSHREW has a very dry hide that is extremely tough. The POKéMON can roll into a ball that repels any attack. At night, it burrows into the desert sand to sleep.
Fire Red:
It burrows and lives underground. If threatened, it curls itself up into a ball for protection.
Leaf Green:
Burrows deep underground in arid locations far from water. It only emerges to hunt for prey.