Shortfin mako sharks over 3 m (9.8 ft) have interior teeth considerably wider and flatter than smaller mako, which enables them to prey effectively upon dolphins, swordfish, and other sharks.[18] An amateur videotape, taken in Pacific waters, shows a moribund pantropical spotted dolphin whose tail was almost completely severed being circled by a shortfin mako. Mako also tend to scavenge long-lined and netted fish.[20]