hedgehog

The hedgehog is a special animal that is cute but has sharp spines all over its body. When in danger, it rolls into a ball to protect itself.

Hedgehogs are nocturnal animals that feed on insects and small animals. They live in gardens and forests, and hibernate during winter. These days, they are also kept as pets due to their cute appearance.

A hedgehog's spines are actually modified hairs, with about 5,000 spines that effectively protect them from predators. This unique defense mechanism is a remarkable result of natural evolution.

There are 17 species of hedgehogs worldwide, each showing different characteristics based on their habitat. Recently, hedgehog characters like 'Harinezumi' have become popular in Japan and Korea, and there's a growing trend on social media of people sharing their daily lives with pet hedgehogs.