One clip names both of them

600 views between them.

Eurasian otter outweighs Grey Heron 5.4× — 7.8 kg against 1.4 kg.

Tale of the tape

Body mass

1.44 kg

🐦 Grey Heron · AVONET

7.81 kg

🦦 Eurasian otter · COMBINE

Body length

no figure yet

🐦 Grey Heron

0.75 m

🦦 Eurasian otter · COMBINE

Maximum lifespan

38 yr

🐦 Grey Heron · AnAge

22 yr

🦦 Eurasian otter · COMBINE

Bars are sized against the larger of the two figures.

حيوانات أمام الكاميرا

مقاطع حقيقية لحيوانات هذا الموقع — تصطاد، وتتقاتل، وتمضي في حياتها.

Shared ancestry

The closest group they share is Tetrapoda (superclass), home to 51,389 species.

We know what their shared ancestor was, but not when it lived — no dated family tree spans both of them yet.