Frozen Solid, Yet Alive: 5 Animals Defy Death in Extreme Cold

• Wood Frog: North America's freeze-tolerant champion; 65-70% body water freezes, brain/heart stop, glucose acts as antifreeze, revives after months at -5°F.
• Iguana: Tropical reptile stiffens and falls from trees below 40°F, but doesn't die; revives with warmth, often seen in viral Florida videos.
• Painted Turtle Hatchlings: Survive with 50% body water frozen, protected by glycerol/glucose, reduce metabolism, spend winter in nests without breathing.
• Alligator: Uses 'snorkeling' method in frozen waters, keeping snout above ice to breathe while body remains still; becomes active when ice melts.
• Darkling Beetle (Alaska): Withstands -100°F; freezes at 19°F but xylomannan (sugar-based antifreeze) protects cells, allowing revival.

Why It Matters: These 5 animals possess incredible biological adaptations to survive extreme freezing temperatures and revive.