Evidence item

凤凰网 reports the approximately 125-million-year-old mammal is the earliest currently confirmed mammal with swimming ability. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 24007

Source: 南大科学家联合国内外学者最新发现：1.25亿年前的小型哺乳动物会游泳 · locator {} · excerpt hash sha256:abd924b1629b065d940ca556b20805ad9a4985eaea9a8b9b20891af2b6bcd541

研究分析了一件早白垩世哺乳动物化石，证实约 1.25亿年前的小型哺乳动物已具备明确的半水生适应特征。这也是目前可确认的、最早具备游泳能力的哺乳动物。