Wildlife of Britain

Here is a scientific summary of adders in the UK — specifically the common European Adder, Vipera berus, which is the only venomous snake species native to Great Britain.  This article covers taxonomy, morphology, ecology, physiology, behaviour, conservation status, threats, population genetics, and distribution, based on various scientific and conservation sources. Taxonomy & Scientific Classification Common name: Adder, Common European adder Scientific name: Vipera berus (nominotypical subspecies often referred to as Vipera berus berus). Family: Viperidae Order: Squamata (snakes and lizards). IUCN Red List status (global): Least Concern, reflecting a wide range across Europe and Asia, not just the UK. Morphology & Physiology Size: Adults typically 60–80 cm long, with females often slightly larger than males. Weight: Around 50–100 g in adults. Colouration: Grey or brown base with a distinct dark zig-zag pattern along the back; melanistic (all-black) individuals occur. Male...

What to Do If Your Dog Is Bitten by an Adder in the UK Adder bites are uncommon but potentially serious for dogs in the UK, particularly during spring and summer when snakes are more active. Knowing how to respond quickly can make a life-saving difference. This guide explains first aid, symptoms, and veterinary care for dogs bitten by adders. Understanding Adder Bites in Dogs The common European adder (Vipera berus) is the UK’s only venomous snake. Its bite is usually defensive rather than aggressive, and bites to dogs often occur when a dog disturbs or steps on a snake in woodland, heath, or grassy areas. Adder venom contains toxins that can cause: Swelling and pain at the bite site Bruising or redness Lethargy or weakness Vomiting or drooling Laboured breathing (in severe cases) Collapse or shock Dogs at high risk include puppies, small breeds, and older dogs, as they may be more sensitive to venom. Immediate Steps to Take If your dog is bitten by an adder, act fast but stay calm: 1....