NaturePresentCaribbean (Hispaniola)high confidence

The Hispaniolan solenodon injects toxic saliva into its prey through grooves in its lower incisor teeth.

Notes on verification

Confirmed by peer-reviewed PNAS study, Wikipedia, and independent academic/educational sources describing the same venom-delivery mechanism via grooved lower incisors. [cascade flags: wikipedia_dropped_other_sources_exist | tier=silver indep_score=0.925 clusters=2 claim_tier=notable | kind=empirical eligibility=high]

Sources

The Hispaniolan solenodon injects toxic saliva into its p… · DeepInquiry