The hedgehog is a small animal that is easy to recognize because of the hundreds of short spines covering its back. It may look slow and quiet, but hedgehogs are active animals, especially after the sun goes down. They spend much of their time searching for food and exploring their surroundings with their excellent sense of smell.
What Does a Hedgehog Look Like?
Hedgehogs have small bodies, short legs, pointed faces, and rounded ears. Their backs are covered with stiff spines, while the face, legs, and underside have soft fur. The European hedgehog (Erinaceus europaeus) is usually brown and can grow to around 20–30 centimeters long.
The spines are actually modified hairs made mostly of keratin, the same material found in human fingernails. A hedgehog cannot shoot its spines, but they are an important defense against predators.
Where Do Hedgehogs Live?
Hedgehogs live in many different environments, including grasslands, woodland edges, farmland, gardens, parks, and areas close to houses. European hedgehogs are found across much of Europe, where they have adapted surprisingly well to human landscapes.
During the day, they usually rest under leaves, bushes, logs, or other sheltered places. At night, they leave their hiding places and begin searching for food.
What Do Hedgehogs Eat?
Hedgehogs are mainly insect-eaters, although their diet can include many different foods. They commonly eat beetles, caterpillars, earthworms, slugs, and other small invertebrates. They may also eat eggs, small animals, and some plant material when available.
Their strong sense of smell helps them locate food in leaves and soil. A hedgehog can spend hours walking around at night, stopping frequently to sniff the ground.
Why Do Hedgehogs Have Spines?
The most famous feature of a hedgehog is its spines. When the animal feels threatened, muscles in its body pull the skin tightly and cause the hedgehog to curl into a ball. Its face, legs, and soft belly are then protected inside, while the predator is left facing a ball covered with sharp spines.
A relaxed hedgehog looks completely different from a frightened one. Instead of being curled tightly, it stretches out its face and legs and continues moving around normally.
Hedgehogs Come Out at Night
Hedgehogs are mostly nocturnal. Their nighttime lifestyle helps them avoid some daytime predators and also allows them to search for insects when temperatures are cooler.
They can travel a considerable distance during one night while looking for food. Their small size can make them difficult to notice, especially when they move quietly through grass or under bushes.
Hedgehog Babies
Female hedgehogs give birth to litters of young called hoglets. A litter can contain several babies, and newborn hoglets are very small and vulnerable.
Hoglets are born with soft, pale spines under the skin. Their first spines begin to appear soon after birth, while their bodies continue developing during the following weeks. The mother stays with them and provides milk until they are ready to become more independent.
Do Hedgehogs Hibernate?
Some hedgehog species hibernate when temperatures become cold and food becomes difficult to find. The European hedgehog is one example. Before hibernation, it builds up fat reserves that provide energy while it remains inactive.
During hibernation, its body temperature, heart rate, and breathing rate can fall significantly. The animal may remain hidden for long periods before becoming active again when conditions improve.
Hedgehogs and People
Hedgehogs often live surprisingly close to people. Gardens can provide shelter, insects, fallen leaves, and quiet places where they can rest. However, roads, fences, garden chemicals, and the loss of natural habitat can create problems for them.
A garden with areas of natural vegetation can give hedgehogs places to hide and search for food. Simple changes in a garden can sometimes make it easier for small wild animals to move between different areas.
A Small Animal With a Big Defense
The hedgehog may seem like a slow and vulnerable little animal, but its spines give it an unusual form of protection. Instead of running away from every danger, it can simply curl into a tight ball and wait until the threat passes.
Walking through a garden at night, a person might never notice a hedgehog quietly moving through the grass. Under the cover of darkness, this small animal continues its nightly search for food, showing how even a tiny creature can have a surprisingly interesting life.
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