10 Most dangerous animals on the planet

Black mamba : These species is the fastest of all snakes . Thankfully , black mambas usually only strike when threatened - but when they do , they will bite repeatedly , delivering enough venom in a single bite to kill ten people .

Tsetse fly : Often regarded as the world's most dangerous fly as its true terror lies in the protozoan parasites they spread known as Trypanosomes .

Puffer fish : Also known as blowfish , they are the second most poisonous vertebrate on the planet . They are arguably more dangerous as their neurotoxin is found in the fish's skin , muscle tissue ,liver ,kidney and gonads , all of which must be avoided when preparing the creature for human consumption .

Indian saw scaled viper: These reptiles live in some of the most populated regions , which stretches well beyond India . Even with a warning , saw scaled vipers are extremely aggressive , with more than double a lethal dose into each bite .

Cone snail : Instantly recognisable for their highly prized brown - and - white marbled shells. Their concealed harpoon -like teeth contain a complex venom known as conotoxin, making them one of the most venomous species of snails.

Cape Buffalo : Reportedly responsible for killing more hunters on the continent than any other creatures , these animals , which can grow up to nearly six feet tall and weigh close to a ton , circle and stalk their prey before charging at speed of up 35 miles per hour .

Stone fish : The most venomous fish known to humans is an easy one to miss . It was named for their visuals similarity to rocks .

Box jelly fish : It is the most venomous marine animal in the world . Its namesake cubic frames contains up to 15 tentacles at the corners, with each growing as much as 10 feet long, that contain toxins that simultaneously attack the heart , skin cells and nervous system.

Golden poison dart frog : The most deadly golden poison dart inhabits the small range of rain forests along Colombia's pacific coast. It grows to around two inches long . Its poison called batrachotoxin , is so potent that there's enough in one frog to kill ten grown men.

Funnel web spider: A funnel-web's bite is a serious cause for alarm as fatality among adults can occur within 30 minutes. The atraxotoxin in their venom causes the human nervous system to short out.