One clip names both of them

1,688 views between them.

Leatherback turtle outweighs Platypus 340× — 420 kg against 1.2 kg.

Tale of the tape

Body mass

1.23 kg

🦫 Platypus · COMBINE

420 kg

🐢 Leatherback turtle · AnAge

Body length

0.42 m

🦫 Platypus · COMBINE

no figure yet

🐢 Leatherback turtle

Maximum lifespan

23 yr

🦫 Platypus · COMBINE

30 yr

🐢 Leatherback turtle · AnAge

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 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.