Yes, apparently, someone does need to say that there are not crabs wider than two or three cars are long. And that someone was Dr. Verity Nye:
(I)t is not inconceivable that new species could be found, but I laughed when I saw this picture.
The news article is being kind to call this a “a well-doctored hoax.” A good hoax should have some plausibility to it. This one is ridiculous.
Is 'Crabzilla' real or not? Leading marine biologist rules picture of giant crab lurking in shallow waters must be a HOAX
Hat tip to Carin Bondar.