ScienceModern (research pertains to Younger Dryas period ~12,900-11,700 years ago, study published 2010)globalhigh confidence

Some elongated carbon spherules linked to the Younger Dryas impact hypothesis resemble modern fecal pellets produced by insects.

Notes on verification

Confirmed by peer-reviewed source (Scott et al. 2010, GRL) and corroborated by AGU press release, Pinter et al. synthesis paper, and multiple independent science news outlets. [tier=gold indep_score=0.838 clusters=4 claim_tier=notable]

Sources