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  you are in: ANIMALS > LIZARDS > SLOW-WORM



Slow-worm
Anguis fragilis  

   Fact File
Slow-worms (by Jules Howard & Laura Brady)
Range:
  • Slow-worms can be 4 - 45cm long.
  • Males are grey-brown, females are golden brown on top and darker underneath and on the sides; they have a shiny appearance.
  • Females and juveniles usually have a dark stripe down the back; males sometimes have blue flecks.
  • They're widespread and common but are thought to be declining.
  • Slow-worms are protected by law from deliberate killing, injury and trade/sale.
Photos by Jules Howard/Froglife (left) and Laura Brady/Froglife (right) 

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.

A year in the life...  

Spring 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.
Summer 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.
Autumn Slow-worms spend autumn preparing for hibernation. Adults usually feed on slow moving prey like slugs.
Winter Slow-worms usually hibernate between November and March.


Primary threats

Degradation and loss of habitats.

More on...
O Frequently asked questions about lizards.
O Check out our slow-worm gallery on Facebook.