They have two spines which join at the pelvis. They have two stomachs, four lungs (two partially conjoined pairs), and two arms. (A third, underdeveloped and unusable arm between their heads was amputated in infancy.




























There are only eight living species of bear and are found in the continents of North America, South America, Europe, and Asia. However, the polar, black and grizzly varities are deadliest. Bears will trample, maul and generally savage their prey. It is also not uncommon for a bear to stalk its prey before attacking it. Although bears have a fearsome reputation, statistically you are more likely to survive a bear attack than being a meal. It is estimated 5-10 fatalities are from bear attacks.
The four big cats are the lions, tigers, leopards and jaguars. These are definitely not your typical house cats. Lions can be found throughout Africa, tigers in Asia, leopards in Africa and Asia, and jaguars in the Americas. Of the big cats, the tiger is the largest and strongest of the four. A male tiger can reach up to 13 ft in total length and weighing up to 660 pounds. Not to mention the ability to climb up trees and capable of jumping to almost twice its height. Tigers typically stalk their prey before charging in for the kill with their sharp claws and powerful jaws. Tigers may kill such formidable predators as leopards, pythons and even crocodiles. The African male lion is the second-largest living cat after the tiger which can weigh up to 550 pounds. Lions typically live and travel in prides, compared to tigers who are usually solitary animals. Regardless of its species, big cats mean business. They are responsible for an estimated 800 fatalities a year.
Sharks have been seens as killers of the sea thanks to movies like Jaws. Out of the 360 species, only four are known killers: great white, tiger, oceanic whitetip and bull sharks. These killer sharks can be found in all parts of the ocean but typically around the United States, Australia, Hawaii and South Africa. To attack its prey, sharks lunge with their razor sharp teeth and easily grip it in their powerful jaws. Great Whites are the largest known predatory fish with a biting pressure of 800 pounds per square inch. With a single bite, a great white can take in up to 31 lbs of flesh. Although there are high incidents of shark attacks, the actual fatalities are fairly low. Shark attacks are responsible for an estimated 100 fatalities a year.
Any creature that resembles prehistoric dinosaurs is definitely not a good thing. Crocodiles are known as fearsome and deadly animals lurking beneath the water stalking and waiting for its prey. The saltwater crocodiles are the most dangerous and largest. They can be found throughout the tropics in Africa, Asia, the Americas and Australia. Crocodiles have extremely powerful jaws with a bite force more than 5,000 pounds per square inch, by far the strongest bite of any animal. On land, crocodiles can sprint in short distances very fast, and launch themselves out of the water to grab a hold of their prey by its powerful jaws. It is estimated 600-800 fatalities are a result from crocodile attacks.

Just when you thought you only had to worry about sharks in the ocean, think again! The jellyfish is one of the most dangerous and deadliest marine creatures with a sting that can kill a fully grown adult within minutes. Most fatalities are by getting in contact with the jellyfish's tentacles which can be as long as several feet with a very potent venom. Preys are usually paralyzed and in humans, a cardiac arrest occurs sealing their fate. About 100 fatalities a year is estimated from jellyfish attacks. For a brainless animal, the jellyfish isn't something you want to come across since they can be found in all parts of the ocean with over hundreds of its species.
"Hi, I'm Danny and I'll be your host. Buzz along…"
"Give me… FOOD!" This fuzzy yellow alien with black spots is called Dasychira Pudibunda and is the larval form, or caterpillar, of the red-tailed moth.
This species of aliens has fooled humans for many years. Popularly known as a bumblebee of the Apidae family, they have donned a fuzzy yellow-and-black fur and spread rumours that some of them are stingless. Right, whatever, just careful with that … thingy, dude!
"Listen to me, Earthling, feel the mighty wrath of Gandalf the Green!" This green bush cricket of the TettigoniidaeLord of the Rings.
"Hullo there, did I startle you? If I did pretty please, will you be my… ahem… buy my dinner?" This praying mantis is one of 2,000 species in the mantis order of insects. As predatory aliens, er, insects, they might better be called preying mantis.
"I might look cute but I can sap you out!" Treehoppers have long fascinated biologists because of their unusual appearance. They belong to the Membracidae family and are closely related to cicadas and leafhoppers. They feed upon the sap found in plant stems, which they prick with their beaks.
This praying mantis male would certainly score a role in any alien movie. His acting talent is undisputed as he's part of the flower mantis species - they pretend to be flowers and then attack their prey. How very cunning, indeed.
"Who you're calling an alien? Our ancestors have been around since 350 million BC!" Wasps are said to be terrestrial but some of them look positively extra-terrestrial. Though often called pests, they are in fact very important for ecosystems: as food for other insects and birds or as predators limiting the populations of many other species.
"Call me a cricket one more time!" Grasshoppers have horns or antennas that are shorter than their body, unlike their relatives', the bush crickets. They may look well shielded but lose many a battle when they end up as a protein-rich delicacy on someone's plate in many parts of the world.
This praying mantis looks straight out of Alien or Men in Black… No prizes for guessing who inspired whom.