What should you know about Hedgehog?
Hedgehogs are ancient insectivores and one of Britain's most-loved garden animals, in serious decline. Full profile in our hedgehog guide.
What should you know about about 5,000 spines?
Modified hairs of keratin, hollow and each on a flexible base. They are not barbed and are not shed defensively. About 5,000 spines is one of the details people actually search for about Hedgehog. It holds as a field note from Europe; it is not a care sheet and not a substitute for the species guide.
Is it true that curling up is muscular?
A powerful ring of muscle draws the spiny skin into a ball, protecting the soft underside. Curling up is muscular is one of the details people actually search for about Hedgehog. It holds as a field note from Europe; it is not a care sheet and not a substitute for the species guide.
What should you know about they self-anoint?
On meeting a strong smell or taste, a hedgehog chews it into frothy saliva and flicks it across its spines. No explanation is settled — camouflage, deterrence and parasite control have all been proposed. They self-anoint is one of the details people actually search for about Hedgehog.
What should you know about they tolerate some venoms?
Partial resistance to certain snake venoms, from a blood protein — the same trick seen in mongooses and honey badgers. They tolerate some venoms is one of the details people actually search for about Hedgehog. It holds as a field note from Europe; it is not a care sheet and not a substitute for the species guide.
Is it true that they are lactose intolerant?
Bread and milk, long left out for them, causes serious digestive harm. Meat-based pet food and water are appropriate. They are lactose intolerant is one of the details people actually search for about Hedgehog. It holds as a field note from Europe; it is not a care sheet and not a substitute for the species guide.
Is it true that they travel over a mile a night?
Roaming widely to forage, which is why fenced gardens fragment their range so badly. They travel over a mile a night is one of the details people actually search for about Hedgehog. It holds as a field note from Europe; it is not a care sheet and not a substitute for the species guide.
Is it true that hibernation is not sleep?
Body temperature and heart rate drop dramatically. Waking is costly, so disturbance in winter can be fatal. This is wild behaviour. People who meet Hedgehog in Europe should give space, not a selfie. You cannot train a briefing into a companion animal.
Is it true that hoglets are born with soft spines?
Beneath fluid-filled skin, so the mother is not injured. Spines harden within hours. Hoglets are born with soft spines is one of the details people actually search for about Hedgehog. It holds as a field note from Europe; it is not a care sheet and not a substitute for the species guide.
Is it true that they can swim and climb?
Which is why steep-sided ponds are a hazard — a hedgehog that cannot find a sloped exit drowns. This is wild behaviour. People who meet Hedgehog in Europe should give space, not a selfie. You cannot train a briefing into a companion animal.
Is it true that british numbers have fallen sharply?
Habitat fragmentation, road deaths, tidy gardens, slug pellets and loss of hedgerow and rough ground have driven a steep decline. British numbers have fallen sharply is one of the details people actually search for about Hedgehog. It holds as a field note from Europe; it is not a care sheet and not a substitute for the species guide.
What should you know about hedgehog highways work?
A 13 cm gap at the base of a garden fence reconnects fragmented territory — one of the most effective simple interventions available. Hedgehog highways work is one of the details people actually search for about Hedgehog. It holds as a field note from Europe; it is not a care sheet and not a substitute for the species guide.
Is it true that check before you strim or light a bonfire?
Long grass and unlit bonfire piles are classic nesting sites. Checking first prevents a large share of avoidable deaths. Check before you strim or light a bonfire is one of the details people actually search for about Hedgehog. It holds as a field note from Europe; it is not a care sheet and not a substitute for the species guide.
Read the full hedgehog wildlife guide for IUCN status, population context and sources — or donate to WARN to help fund the partner teams protecting wildlife on the ground.
What is this briefing not?
This briefing is not a substitute for the full Hedgehog wildlife guide, not a pet-care manual, and not a first-person field dispatch. It is a desk-researched explainer for people who searched a specific question about Hedgehog. The setting is Europe, Asia and Africa.
12 Amazing Facts About Hedgehogs (5,000 Spines, and They Self-Anoint) sits in the newsroom as a species explainer. It is not a Field notes dispatch from a partner clinic, and it is not a reason to keep Hedgehog. Location context: Europe, Asia and Africa.
Who should skip this page?
Skip this page if you wanted a complete IUCN-style species profile, veterinary advice, or permission to keep Hedgehog as a pet. You will not find those here. Read the wildlife guide next if you need status, range and sources in one place.
Skip it if you needed veterinary instructions, a travel itinerary, or a fundraising story dressed up as science. The skip is the point: a page that cannot say no is not a guide.
How does this briefing compare to the full species guide?
This page answers the search in the headline. The wildlife guide answers status, threats, and what is actually known. Use both; do not cite the listicle as if it were the Red List. Self-anointing with frothed saliva, partial immunity to some venoms, and a British decline nobody planned.
| Takeaway |
|---|
| Hedgehogs carry around 5,000 hollow keratin spines, which are modified hairs. |
| Self-anointing — spreading frothy saliva over the spines — has no settled explanation. |
| They are lactose intolerant; bread and milk causes serious harm. |
| They roam over a mile a night, so fenced gardens fragment their range. |
The canonical profile is the Hedgehog wildlife guide — IUCN context, range, and the sources behind the numbers. This newsroom page is the short, question-shaped route into that guide.
What is the catch with a short wildlife briefing?
The catch with wildlife listicles is that a true fact can still be the wrong takeaway. “Amazing” is not the same as “safe to keep”, and a number without a source is trivia. Every figure on this page should be read against the cited IUCN or zoo pages, not against a screenshot.
Factory “12 facts” pages elsewhere on the web pad the same three sentences. Here each heading is a real question, each answer is meant to stand alone, and the sources at the end are the audit trail. If a number is not on this page or in those sources, we did not invent it.
What should you do after reading this?
Use this briefing to answer the question in the title, then go to the species guide for status and sources. If you want to help Hedgehog, fund habitat and enforcement — do not buy the animal. Hedgehogs carry around 5,000 hollow keratin spines, hibernate through winter, and perform self-anointing — chewing a strong-smelling substance and spreading frothy saliva across their spines for reasons still unexplained.
If you want to support WARN’s partner work, donate knowing we are a community interest company, not a registered charity. If you want the animal itself, you have the wrong page.
Read the verdict on the first screen, the skip-if before you share the page, and the sources at the end before you quote a number. That is the whole contract of this briefing.
