Otters are medium-sized semiaquatic mammals grouped together within the Lutrinae subfamily of the Mustelidae family of mammalian carnivores. Most closely related to the stoats, weasels, martens and polecats, 13 species of otter are recognised globally, one of which, the European otter (Lutra lutra), is native to and resident in Britain. In the wake of improvements in water quality and the banning of pesticides, otters are experiencing a resurgence in Europe and in the UK in particular since the 1980s.
No questions exist for this group.
Otters - by Paul Channin
Whittet Books -- 2019 -- ISBN: 978-1873580844
Otters in Britain - by Liz Laidler
David & Charles -- 1982 -- ISBN: 0-715308069-9
Otters of the World - by Paul & Grace Yoxon
Whittles Publishing -- 2014 -- ISBN: 978-1849951296
Otters: Ecology, behaviour and conservation - by Hans Kruuk
Oxford University Press -- 2008 -- ISBN: 978-0198565864
RSPB Spotlight: Otters - by Nicola Chester
Bloomsbury Natural History -- 2014 -- ISBN: 978-1472903860
The Otter - by James Williams
Merlin Unwin Books -- 2010 -- ISBN: 978-1906122225
The Otter - by Gordon Woodroffe
The Mammal Society -- 2007 -- ISBN: 978-0906282632