Sharks
Yes they do. Sharks have a keen sense of smell and can smell blood in the water from miles away.
When they can smell blood in the water.
The smell of dead sharks.
Water molecules are carried to the shark by water currents. If there are no water currents then it's molecular diffusion... - See more at: http://www.chacha.com/question/how-do-sharks-'smell'-blood-underwater#sthash.eHVYYyJ6.dpuf
Sharks smell blood so they go after it and because of mucky water or not clear water and/or because the bad sight sharks have,they attack what is in the area of blood
Sharks smell very well. As a shark swims, water flows in and out of its nose. If the shark picks up the scent of blood it makes a beeline for it, sniffing hard to stay on course.
..AHmMmpf...the sense of SMELL of the sharks is their adaptators...it hepls the sharks to hunt their prey and with the help of there sharp teeths...gudday,,!!!!!!!!!meowth....
sharks can actually smell blood from almost a mile away
yes
yu
the sharks can smell blood 20-40 miles