One clip names both of them

16,579 views between them.

Harbour seal outweighs Emperor penguin 2.8× — 94.3 kg against 33.6 kg. Both figures are averages across males and females.

Tale of the tape

Body mass

34 kg

🐧 Emperor penguin · AVONET

94 kg

🦭 Harbour seal · COMBINE

Body length

1.15 m

🐧 Emperor penguin · SeaLifeBase

1.81 m

🦭 Harbour seal · COMBINE

Maximum lifespan

no figure yet

🐧 Emperor penguin

48 yr

🦭 Harbour seal · COMBINE

Bars are sized against the larger of the two figures.

Zvířata zachycená kamerou

Skutečné záběry zvířat z tohoto webu – jak loví, jak se perou a jak si prostě žijí.

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.