Eastern Brown Snake

Responsible for more deaths in Australia than any other snake species. Fast-moving and highly aggressive when threatened.

FamilyElapidae

GenusPseudonaja

RegionOceaniaEastern Australia, New Guinea

Photo: Matt from Melbourne, Australia · Source: Wikimedia Commons · License: CC BY 2.0

Eastern Brown Snake

Photo: Matt from Melbourne, Australia · Source: Wikimedia Commons · License: CC BY 2.0

Eastern Brown Snake

Danger Score

Final Danger Score

Venom Core

Lethality weighted 55% (potency × yield). Clinical weighted 45% (real-world CFR).

0.55 × 66 + 0.45 × 6967.4

Modifiers

Multiplicative scalers - amplify or reduce existing danger, can't create it from nothing.

× Speed (1.01)68.0

× Delivery (1.00)68.0

× Encounter (1.10)74.8

Speed = antivenom window. Delivery = fang efficiency. Encounter = exposure × temperament.

Score75

Venom Profile

Type

NeurotoxicAffects the nervous system; disrupts nerve-muscle communication and can cause paralysis or respiratory failure.,HemotoxicTargets blood and circulatory system; disrupts clotting and can cause bleeding disorders.

Venom Yield

Low

Venom Speed

Quick

Delivery Method

Fixed front fangs

Potency (SC Equivalent)

0.037mg/kg LD50

Max Dry Yield

5mg dry

Clinical Severity

Fatality (Untreated)

10-20%

WHO Importance

Cat. 1

Local Effects

Pain at bite site

Neurological

Paralysis

Blood

Internal bleeding, Coagulopathy

Muscle

Kidney failure

Gastrointestinal

Nausea or vomiting, Abdominal pain or cramps

Causes of Death

Respiratory failure, Massive internal bleeding, Kidney failure, Circulatory shock