Snares, sometimes referred to as cable restraints, cause a great deal of suffering to animals and are indiscriminate as they can harm species they are not intended for such as otters, dogs and cats.
Nid ydynt yn gwahaniaethu mewn unrhyw ffordd, ac maen nhw'n gallu niweidio rhywogaethau na'u bwriedir ar eu cyfer, megis dyfrgwn, cŵn a chathod.