One clip names both of them

3,854 views between them.

Eurasian otter outweighs Brown-throated sloth 2.0× — 7.8 kg against 4 kg.

Tale of the tape

Body mass

7.81 kg

🦦 Eurasian otter · COMBINE

3.96 kg

🦥 Brown-throated sloth · COMBINE

Body length

0.75 m

🦦 Eurasian otter · COMBINE

0.75 m

🦥 Brown-throated sloth · COMBINE

Maximum lifespan

22 yr

🦦 Eurasian otter · COMBINE

27 yr

🦥 Brown-throated sloth · COMBINE · estimated

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 Theria (subclass), home to 9,319 species.

They last shared an ancestor about 87 million years ago.

Estimates range from 78 to 117 million years; the figure above is the middle estimate.

About this estimate

Dates from Upham, Esselstyn & Jetz 2019, PLoS Biology 17:e3000494 (CC0).