Mammal that can sink a boat (4)
I believe the answer is:
orca
(Other definitions for orca that I've seen before include "Marine creature" , "ship" , "Killer-whale" , "School killer" , "Large mammal" .)
I believe the answer is:
orca
(Other definitions for orca that I've seen before include "Marine creature" , "ship" , "Killer-whale" , "School killer" , "Large mammal" .)