Originally Posted by willk
Surely a SIB or RIB surrounded by chum and emitting electrical current and movement must scream "dying cetacean!" to any passing shark. They're not the brightest bulb on the christmas tree
According to a BBC (David Attenborough) programme on sharks from a few years ago, they are brighter than you think. Some stats for you...
1/ They can identify a single drop of blood in 25 million drops of seawater
2/ Can detect low frequency sound from more than a mile away
3/ Sharks have a line of pressure sensors down each flank for a 3D map of their surroundings
4/ Eyes are 10x more sensitive than ours in low light
5/ Can detect electrical impulses down to 5 billionth of a volt
And you can roll your tongue!