🦭
Harbour seal
Phoca vitulina
Carnivores · Least concern
vs
🐋
Blue whale
Balaenoptera musculus
Marine mammals · Endangered
2 clips name both of them
6.6 million views between them.
Blue whale outweighs Harbour seal 1580× — 149,000 kg against 94.3 kg. Both figures are averages across males and females.
Tale of the tape
Body mass
94 kg
🦭 Harbour seal · COMBINE
149,000 kg
🐋 Blue whale · COMBINE
Body length
1.81 m
🦭 Harbour seal · COMBINE
30 m
🐋 Blue whale · COMBINE
Maximum lifespan
48 yr
🦭 Harbour seal · COMBINE
110 yr
🐋 Blue whale · COMBINE
Bars are sized against the larger of the two figures.
Animals caught on camera
Real footage of the animals on this site — hunting, fighting, and getting on with it.
Shared ancestry
The closest group they share is Laurasiatheria (superorder), home to 4,193 species.
We know what their shared ancestor was, but not when it lived — no dated family tree spans both of them yet.