I was sent this story of Russian workers in Chelyabinsk discovering a 5-foot long monster prehistoric fish that attacked them and that they had to kill with their equipment. Does this look like a horrible monster to you? Does it even look like a fish?
I could tell at a glance that neither was the case. I got a quick confirmation from our expert invertebrate taxonomist down the hall, Tracey Anderson, and I can assure you that it is a branchiopod crustacean, a poor abused tadpole shrimp. Even the photography tells you that this was a little guy, with a length measured in, at best, inches not feet.
Those Russian construction workers must be real wimps that they were frightened by a tiny crustacean. Other photos show it being crushed by some metal object, with nothing in the field of view to show the scale…unlike this photo.