There isn't a single clear winner for the title of "most venomous mammal," but two strong contenders are:
- The platypus: The male platypus has venomous spurs on its hind legs. This venom isn't fatal to humans, but it can cause excruciating pain that lasts for weeks [BBC Wildlife].
- Solenodons: These Cuban and Hispaniolan insectivores have venomous bites delivered through grooves in their lower incisors. Their venom is strong enough to kill small animals and can be dangerous to humans [Wikipedia].
Here are some other interesting venomous mammals:
- Shrews: Several shrew species have mild venom in their saliva that can paralyze their prey.
