 Occasionally a Portia is killed or injured while pursuing prey up to twice Portia ′ s size . P. labiata is killed in 2 @.@ 1 % of pursuits and injured but not killed in 3 @.@ 9 % , P. schultzi is killed in 1 @.@ 7 % and injured but not killed in 5 @.@ 3 % , and P. fimbriata in Queensland is killed in 0 @.@ 06 % of its pursuits and injured but not killed in another 0 @.@ 06 % . A Portia ′ s especially tough skin often prevents injury , even when its body is caught in the other spider 's fangs . When injured , Portia bleeds and may lose one or more legs . Spiders ' palps and legs break off easily when attacked , Portia ′ s palps and legs break off exceptionally easily , which may be a defence mechanism , and Portias are often seen with missing legs or palps , while other salticids in the same habitat are not seen with missing legs or palps . : 440 – 450 
