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#0032 · 🦊 mammals

Eurasian Otter

🇳🇱 Europese Otter ·Lutra lutra

NTnear threatened 🦊 Mammals 📍 in the Netherlands
Eurasian Otter, photo 1 of 10
1/10 © Tomi Tirkkonen · CC BY-NC-SA 4.0

what is it?

The Eurasian otter ( Lutra lutra ), also known as the European otter , Eurasian river otter , common otter , and Old World otter , is a semiaquatic mammal native to Eurasia. The most widely distributed member of the otter subfamily (Lutrinae) of the weasel family (Mustelidae), it is found in the waterways and coasts of Europe, many parts of Asia, and parts of northern Africa. The Eurasian otter has a diet mainly of fish, and is strongly territorial. It is...

base stats

  • NL sightings 28iNaturalist, research grade
  • worldwide 11,805iNaturalist observations
  • weight 110 gadult, up to
  • threat NTnear threatened

Bars compare against all animals on log scales: up to 300,000 Dutch and 600,000 worldwide sightings (the most-seen species), 150 t (blue whale), 30 m and 400 years (Greenland shark).

fun facts

  • Spotted 28 times in the Netherlands on iNaturalist: the #32 most seen of the mammals in NL.
  • 11,805 observations worldwide on iNaturalist.
  • Weighs only about 110 g.
  • Scientifically named in 1758 (268 years ago).

fact sheet

English
Eurasian Otter
Nederlands
Europese Otter
scientific name
Lutra lutra
class
Mammalia
order
Carnivora
family
Mustelidae
IUCN Red List
NT · near threatened
in NL
native
sightings in NL
28
sightings in Europe
6,972
sightings worldwide
11,805
GBIF records in NL
11,375
weight
110 g
length
—
lifespan
—
named
1758

IUCN in Dutch: gevoelig. Blank means the sources don't say.

relatives· Mustelidae

Sources: iNaturalist taxon 41850, Wikidata Q29995, GBIF 2433753, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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