Eastern Massasauga

Iconic small rattlesnake of the Great Lakes region.

GenusSistrurus

RegionNorth AmericaGreat Lakes, Midwest

Photo: Riley Stanton · Source: Wikimedia Commons · License: CC BY-SA 4.0

Eastern Massasauga

Click to shuffle (1/4)

Photo: Riley Stanton · Source: Wikimedia Commons · License: CC BY-SA 4.0

Eastern Massasauga

Click to shuffle (1/4)

Danger Score

Final Danger Score

Venom Core

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

0.55 × 43 + 0.45 × 2735.8

Modifiers

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

× Speed (1.01)36.2

× Delivery (1.00)36.2

× Encounter (0.89)32.2

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

Score32

Type

NeurotoxicAffects the nervous system; disrupts nerve-muscle communication and can cause paralysis or respiratory failure.

Venom Yield

Low

Venom Speed

Quick

Delivery Method

Hinged front fangs

Potency (SC Equivalent)

1.400mg/kg LD50

Max Dry Yield

30mg dry

Fatality (Untreated)

1-5%

WHO Importance

Cat. 2

Local Effects

Pain at bite site

Neurological

Paralysis

Gastrointestinal

Nausea or vomiting

Causes of Death

Respiratory failure