4 clips name both of them

5.2 million views between them.

Canadian beaver outweighs Eurasian otter 2.6× — 19.9 kg against 7.8 kg.

Tale of the tape

Body mass

20 kg

🦫 Canadian beaver · COMBINE

7.81 kg

🦦 Eurasian otter · COMBINE

Body length

0.78 m

🦫 Canadian beaver · COMBINE

0.75 m

🦦 Eurasian otter · COMBINE

Maximum lifespan

23 yr

🦫 Canadian beaver · COMBINE

22 yr

🦦 Eurasian otter · COMBINE

Bars are sized against the larger of the two figures.

Animales captados por la cámara

Imágenes reales de los animales de este sitio: cazando, peleando y haciendo su vida.

Shared ancestry

The closest group they share is Theria (subclass), home to 9,319 species.

They last shared an ancestor about 81 million years ago.

Estimates range from 74 to 89 million years; the figure above is the middle estimate.

About this estimate

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