thousands of crabs

thousands of crabs

Observation - thousands of crabs - UK and Ireland. Description: Thousands of crabs along strand line. Are they dead crabs or shed skins, if they are dead then what killed them? note there is a ladybird somewhere in the image for scale

Thousands of crabs along strand line. Are they dead crabs or shed skins, if they are dead then what killed them? note there is a ladybird somewhere in the image for scale