The shark broke the plans of scientists
Scientists have floated in the sea not far from Sydney, the goal was simple - to put a tag on the fish from the family of billfish to the purposes of scientific research, and then remove the instructional video on how to properly release the fish into the wild.
It worked, raised a run, the operator was ready to make a film, a scientist holding a fish's nose and was ready to let her go, as happened here is unpredictable.
A. Photographer decided to sail for about 5 meters from the boat to remove marlin from another angle. (Al McGlashan)

Scary mouths of wildlife
About voracity of these creatures are legendary. Animals often eat the fish that came to the network, so thus bring a lot of harm to fisheries. Like a huge worm, hagfish has an impressive jaw with an interesting arrangement of sharp teeth arranged in several rows.
Ironically, despite the existence of such a menacing jaws, hagfish do not necessarily use it to stay well-fed. She knows how to eat the skin: swimming in the water next to the rotting corpses decomposing creatures, absorbing their skin beautiful corpse juice through the pores of the skin.
Teeth-knives, leatherback sea turtles
Leatherbacks are the largest turtles in the world. Unlike many other harmless species of turtles, pinched pot, these monsters have a very terrible jaw, they need to feed on mollusks, crustaceans and young fish.
In the mouth of these turtles have a whole bunch of teeth, similar to stalactites in the cave, which grow from completely different sides of the jaws, and even in the throat.