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  you are in: ANIMALS > LIZARDS > SLOW-WORM 



Slow-worm
Anguis fragilis  

Slow-worms are a type of legless lizard and are often mistaken for snakes. Unlike snakes they can blink, have a flat forked tongue and can drop their tails if attacked. Slow-worms are widespread throughout Britain but are absent from Ireland.

Statistics

Size: 4 - 45cm
Colour: males are grey-brown, females are golden brown on top and darker underneath and on the sides; they have a shiny appearance.
Markings: females and juveniles usually have a dark stripe down the back; males sometimes have blue flecks.
Status: widespread but thought to be declining; protected against killing, injury and trade/sale.  

A lizard’s life  

Female slow-worms incubate their eggs internally and ‘give birth’ to live young in late summer. The gold or silver juveniles are very thin and only around 4cm long.  

Slow-worms usually hibernate between November and March.  

Adults emerge from their hibernation sites in spring; breeding takes place during April and May. Slow-worms do not tend to bask out in the open like other reptiles, instead preferring to hide under objects that will be warmed by the sun or will create their own warmth such as compost heaps or dead wood. They feed on slow moving prey like slugs.  

Primary threats

Degradation and loss of habitats.