Glossy black with 13 red spots on the back — hence its Italian name, malmignatte. Smaller than American black widow but with similar venom.

Alpha-latrotoxin causes severe muscle spasms, abdominal cramping, hypertension, and sweating ('latrodectism'). Antivenom available; before its development, mortality was 4–5%.

Dry steppes, vineyards, abandoned buildings, and stone piles across southern Europe and the Balkans.

Builds tangled webs near the ground. Female bites only when pressed against skin — typically when moving rocks or harvesting grapes.

Small, dark tick — the primary disease vector in Europe. Despite being only 3–4 mm, kills more Europeans annually than any other animal.

Transmits Lyme borreliosis (200,000+ cases/year), tick-borne encephalitis (3,500+ cases/year, ~30 deaths), babesiosis, anaplasmosis. The TBE vaccine exists.

Forests, parks, tall grass, urban green spaces. Most active April–June and September–October.

Quests on grass tips and twigs, latching on contact. Seeks warm, moist body sites. Feeds for 3–7 days before dropping off.

Black with silver-white stripes, 5–10 mm. Invasive species from Southeast Asia, arrived in Europe in 1979. Now established in 13 EU countries; with climate warming spreading north every year.

Vector for dengue, chikungunya, Zika, West Nile, and yellow fever. France logged 228 locally-acquired chikungunya cases in summer 2025 alone — 7x previous 14-year total. Aggressive day-biter, unlike most other mosquitoes.

Established in Italy, France, Spain, Portugal, Greece, Croatia, Albania, Bulgaria, Romania, Slovenia, Switzerland, southern Germany, Hungary. Spreading to Belgium, Netherlands, UK.

Bites by day (dawn and dusk peaks). Breeds in tiny pools of water — flowerpots, gutters, bottle caps. One female lays 100+ eggs per cycle.

Brown mosquito 5–7 mm — the typical 'house mosquito' across Europe. Native, not invasive — but increasingly dangerous as warming climate amplifies disease cycles.

Primary vector of West Nile virus in Europe. Italy alone logged 430 WNV cases and 27 deaths in summer 2025 — equal to all US cases for that year. Spain, Greece, France, Romania, Hungary all reporting outbreaks.

All of Europe except the far Arctic. Breeds in any standing water — gutters, water butts, flooded basements, urban drains.

Bites mostly at dusk and night. Females hibernate in basements/attics through winter. The lifecycle from egg to adult takes only 7–10 days in summer.

Familiar farm animal, but in the UK cows kill more people each year than any other animal — 4-7 deaths annually. Often when walkers cross fields with calves.

Cows with calves are extremely protective. Bulls in fields with public rights-of-way are a known UK hazard. Most attacks involve dog-walkers — cows perceive dogs as a threat.

Fields and pastures across all of Europe. Particularly relevant in UK, Ireland, France, Germany where rights-of-way cross farmland.

Normally docile but unpredictable. Charges with horns lowered. UK Health & Safety advises: release dogs immediately if approached.

Light brown spider 7-10 mm with a violin-shaped marking on the head. Six eyes (most spiders have eight). Increasingly common in southern European homes.

Cytotoxic venom causes 'loxoscelism' — necrotic skin lesions that can rot for weeks. Confirmed deaths in Italy and Spain in recent years.

Walls, attics, woodpiles, behind furniture in homes across Italy, Spain, Portugal, southern France, Greece, Croatia, Cyprus, Malta.

Reclusive — bites only when pressed against skin (e.g., in clothes or bedding). Active at night hunting other arthropods.

Grey or brown with a distinctive zigzag along the back, up to 80 cm. The northernmost venomous snake in the world — found inside the Arctic Circle in Lapland.

Hemotoxin causes pain and swelling. Around 0.5% of bites are fatal — usually only in children, the elderly, or those with allergies. About 7,500 bites per year across Europe.

Forests, bogs, heathland, and mountain meadows up to 3,000 m elevation.

Shy and retreating. Bites only when stepped on or cornered. Active by day in cool weather, by night in summer.

Smaller and darker than European hornet, with yellow legs. Invaded Europe via France in 2004 and now spread across France, Spain, Portugal, Italy, UK, Germany, Belgium.

Highly aggressive when nests are disturbed. Several confirmed deaths in France and Spain from anaphylactic shock. Devastating to honey bee colonies — kills up to 50 bees per day per hornet.

Builds large nests high in trees — often only spotted in autumn when leaves fall.

Hovers in front of beehives picking off returning bees. Defends its nest aggressively at 5 m distance — silent, fast, persistent.

Up to 75 cm with an upturned snout. Causes the majority of snakebites in France, Switzerland, and northern Italy — about 1,000 envenomations annually.

Venom is more potent than the common viper. About 4% of untreated bites are fatal. Severe tissue damage common; victims often need months of recovery.

Sun-warmed slopes, dry meadows, vineyards, and forest edges in southwestern Europe.

Less retiring than common viper. Strikes with little warning when stepped on or grabbed. Mating in spring; gives birth to live young.

Common throughout Europe. Males reach 200 kg with razor-sharp tusks. Adapts well to humans — boars now roam parks of Berlin, Rome, and Barcelona; 3,000+ in Berlin alone.

Causes more wild-animal injuries in Europe than any predator. A sow defending piglets or a wounded male can disembowel within seconds.

Forests, fields, and increasingly suburban areas of major cities.

Lives in family groups (sounders). Active at dusk and night. Charges with tusks aimed at the legs and groin — capable of 40 km/h.

Tiny (2–3 mm) hairy fly that looks like a fuzzy mosquito. Active at dusk in Mediterranean coasts. Despite size, vectors a horrifying parasitic disease.

Transmits Leishmania parasites causing leishmaniasis: cutaneous form creates flesh-eating skin ulcers; visceral form (kala-azar) attacks organs and kills if untreated. Several thousand cases per year in Mediterranean Europe.

Mediterranean coast — Spain, Portugal, southern France, Italy, Greece, Croatia, Albania, Cyprus, Malta. Hides in cracks, animal burrows, rubbish.

Silent flight — no buzz like a mosquito. Bites at dusk and dawn. Cannot fly far so spreads disease by hopping between hosts in close range.

Small purple-pink jellyfish that forms huge swarms in the Mediterranean. Bell only 10 cm but tentacles extend up to 3 m.

Sting causes intense burning pain, blistering, scarring lasting weeks. Allergic reactions can cause anaphylaxis. Closes beaches across Spain, France, Italy in summer.

Open Mediterranean and Atlantic. Drifts inshore in summer with currents.

Bioluminescent — glows when disturbed at night. Stings even after death — washed-up bells on beaches remain active for hours.

Yellow-brown, up to 8 cm. Found in Spain, southern France, Italy, the Balkans. The largest scorpion in Europe.

Sting is intensely painful — comparable to a wasp — and can cause swelling, fever, vomiting. Healthy adults recover in 24 hours; risk for children and allergics.

Dry rocky terrain, vineyards, ruins, and old stone walls of the Mediterranean.

Nocturnal. Hides under stones and bark by day. Stings when stepped on, sat on, or while putting on shoes left outside overnight.

Small sandy-brown fish — up to 15 cm — that buries itself in shallow sand with only its eyes and dorsal spine showing. Found at swimming depth.

Stepping on it drives a venomous spine into the foot, causing severe pain for 2–24 hours. Rarely fatal but ER visits common — UK alone reports 1,000+ stings per year.

Sandy shallows of the Atlantic and Mediterranean coasts of France, UK, Ireland, Spain, Portugal, Italy.

Buries in sand at low tide. Strikes only defensively. Most stings occur on popular beaches in summer at low water.

Smallest European viper — only 40-50 cm. Critically endangered, with only ~3,500 mature adults left across Europe. Listed in IUCN Red List.

Mild venom — only one human fatality recorded in 200 years. Bites cause local pain but rarely systemic effects.

Mountain meadows and karst plateaus of France (Provence), Italy (Abruzzo), Hungary, Romania, Albania, Bosnia, North Macedonia, Greece, Ukraine (Carpathians).

Diurnal. Hunts grasshoppers, lizards. Hibernates 6 months underground. Despite habitat, almost no human encounters.

Largest dolphin — up to 9 m and 6 tons. Apex predator of the oceans. Since 2020, a pod off Iberia has been deliberately ramming and sinking sailboats.

No fatal attacks on humans in the wild ever recorded — but as of 2024, over 700 boat ramming incidents and 4 sailboats sunk off Spain and Portugal. Direct human risk: drowning during shipwreck.

All European waters — Atlantic, Bay of Biscay, Mediterranean (rare), Norwegian Sea, North Sea. Iberian pod active off Spain, Portugal.

Highly intelligent, social — pods of 5-30. Teach each other behaviours culturally. The boat-ramming is being learned by new generations.

Up to 17 cm long. Yellow-orange body with dark bands. The largest centipede native to Europe, found across the Mediterranean.

Bite delivers venom via modified front legs (forcipules) — extremely painful, causes swelling, fever, occasionally vomiting. Not fatal but agonizing.

Under stones, logs, leaf litter across Italy, Spain, Portugal, Greece, France (south), Croatia, Cyprus, Malta, southern Ukraine, Crimea.

Nocturnal predator hunting insects, spiders, even small lizards. Aggressive when handled — flips and grabs with multiple legs.

Slender, deep-blue shark up to 3.8 m. The most commonly seen large shark in the Mediterranean and northeast Atlantic.

Attacks on humans are rare but documented — about 13 fatal attacks worldwide. Will investigate divers and survivors of shipwrecks.

Open ocean and coastal waters of the Atlantic, Bay of Biscay, and Mediterranean Sea.

Migratory and curious. Often investigates boats and divers. Aggressive only when food is present or in feeding frenzy.

Large (up to 25 mm) robust fly with iridescent eyes. Females need blood for eggs — slice skin with bladed mouthparts rather than piercing.

Bite is significantly more painful than mosquito — feels like a needle. Can transmit anthrax, tularemia, Lyme disease, and EIA. Allergic reactions cause anaphylaxis in rare cases.

Forests, pastures, near water across all of Europe — most common in Russia, Ukraine, Belarus, Poland, Scandinavia, Germany, France.

Active in hot, sunny weather. Attracted to dark-colored, moving objects. Persistent — keeps following until it bites.