It is because they think both of them are ugly
the behavoriol adaptations of a swordfish help fellow swordfish communicate with each other to live
well obivosly they hump each other i mean really.
africans fight each other because they belive that they should
it caused lroquois to fight each other
not most swordfish get along with other fish
Yes, there is evidence the velociraptors did fight each other, sometimes to the death.
they wont fight they have to be the same BREED and LITTER to not fight each other .
they fight each other beacause they want a mate to have sex with .
a sport in which two people fight each other
They fight each other only for the colour of the team not for anything else
Yes, geckos do fight each other for territory or dominance.
Possibly marlin - they are not actually swordfish, but are closely related.