Description ¹⁰

The Eurasian otter is a typical species of the otter subfamily. Brown above and cream below, these long, slender creatures are well-equipped for their aquatic habits. Their bones show osteosclerosis, increasing their density to reduce buoyancy. This otter differs from the North American river otter by its shorter neck, broader visage, the greater space between the ears and its longer tail. However, the Eurasian otter is the only otter in much of its range, so it is rarely confused for any other animal. Normally, this species is 57 to 95 cm (22.5 to 37.5 in) long, not counting a tail of 35–45 cm (14–17.5 in). The female is shorter than the male. The otter's average body weight is 7 to 12 kg (15 to 26 lb), although occasionally a large old male may reach up to 17 kg (37 lb). The record-sized specimen, reported by a reliable source but not verified, weighed over 24 kg (53 lb).

Fontes e Créditos

1. (c) Aleksandar, alguns direitos reservados (CC BY-SA), uploaded by Aleksandar
2. (c) Klaus Rassinger, alguns direitos reservados (CC BY-SA), http://commons.wikimedia.org/wiki/File:Lutra_lutra_04_MWNH_414.jpg
3. (c) Klaus Rassinger, alguns direitos reservados (CC BY-SA), http://commons.wikimedia.org/wiki/File:Lutra_lutra_02_MWNH_414.jpg
4. (c) Klaus Rassinger, alguns direitos reservados (CC BY-SA), http://commons.wikimedia.org/wiki/File:Lutra_lutra_03_MWNH_414.jpg
5. (c) Klaus Rassinger, alguns direitos reservados (CC BY-SA), http://commons.wikimedia.org/wiki/File:Lutra_lutra_01_MWNH_414.jpg
6. (c) Juan Lacruz, alguns direitos reservados (CC BY-SA), http://commons.wikimedia.org/wiki/File:Nutria_1.jpg
7. (c) Creator:Capber fabrice, alguns direitos reservados (CC BY-SA), http://commons.wikimedia.org/wiki/File:Empreintes_de_loutres.jpg
8. (c) David Perez, alguns direitos reservados (CC BY), http://commons.wikimedia.org/wiki/File:Lutra_lutra_01_by-dpc.jpg
9. (c) Drow_male, alguns direitos reservados (CC BY-SA), http://commons.wikimedia.org/wiki/File:Excrementos_de_nutria.001.JPG
10. (c) Wikipedia, alguns direitos reservados (CC BY-SA), http://en.wikipedia.org/wiki/Eurasian_otter

Mais informações

• BioDiversity4All taxon page
• Animal Diversity Web
• ASM Mammal Diversity Database
• Biodiversity Heritage Library
• BOLD Systems BIN search
• Global Biodiversity Information Facility (GBIF)
• iNaturalist Mammal Working Group
• NBN Atlas
• VertNet
• 日本のレッドデータ検索システム

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