No, lampreys are not dangerous. Though you may see people coming out of lakes or freshwater ponds with them attached to their body, it does not harm you. Sometimes lampreys attach to objects to fight the current, it is not sucking out your blood. I imagine that humans don't taste very good to lampreys as they suck the blood of FISH. Not humans. Though I do have to say they look pretty scary... hope this helped!
Surfeit of Lampreys was created in 1941.
Sea lampreys drink or eat blood
Sea Lampreys have been known since ancient times.
Sea lampreys are fish.
lampreys are only hunted by man
No, lampreys are a cartilaginous fish, and being made of cartilage, they have no bones.
Lampreys differ from hagfishes by having a notochord that is surrounded by a tube of cartilage.
Birds and mammals are air breathers. Lampreys are not.
blood
no
No, they are ectothermic
Sea Lampreys got to the U.S. by shipping canals which connected the great lakes to oceans.