1. Yes
2. No

While sharks have a terrifying reputation, it is not exactly deserved. There are over 400 different kinds of sharks and only about 30 of those are known to attack humans.

1. Snake
2. Wolf
3. Spider
4. Shark

Sea snakes are typically hyper venomous, but nonaggressive and do not seek out human snacks. Their bites are typically small and often go unnoticed until they begin to cause deadly consequences. Organ and heart failure, vomiting, suffocation and paralysis are just a few of the nasty effects of a sea snake bite.

1. swims in both salt and fresh water.
2. likes the taste of people.
3. is so overpopulated
4. is poisonous.

Unique among sharks, the bull shark is notoriously aggressive and has been known to be found far inland, as it can swim in both salt and fresh water. Bull sharks have even been found in the Mississippi River.

1. Yes
2. No

Orcas often use strategy to hunt their prey, which is sometimes mother whales and their young. The Orca work together to separate calves from their mothers and keep them under water until they drown, so they can eat them.

1. Yes
2. No

Hammerhead sharks are large and highly predatory creatures with specialized detection abilities in their distinctive heads. However, hammerheads prefer to eat stingrays and not people.

1. Fish
2. Mammals
3. Reptiles
4. None of the Above

Polar bears are the largest of terrestrial mammalian predators. Weighing up to 1,500 pounds, the massive arctic apex predators are exceptional swimmers and spend most of their life on ice or in the water.

1. Great white
2. Hammerhead
3. Nurse
4. Cookie cutter

Great whites are infamous man-eaters, even though humans are not their preferred snack. These sharks are responsible for the most shark bites and most fatal attacks on humans of any shark species.

1. Great white
2. Mako
3. Hammerhead
4. Cookie cutter

Mako sharks are the fastest swimmers among sharks. They can hit speeds of over 60 mph and are known to leap onto boats.

1. Saltwater
2. American
3. East Asian
4. Dwarf

Saltwater crocodiles are known as Salties, but despite their cute nickname are hyper-aggressive apex predators known to take down sharks and humans easily. They are spread throughout India's eastern coast and Australia's northern coast, and most of Southeast Asia.

1. Yes
2. No

In various forms, sharks have been hunting through the oceans for over 400 million years. They are the ocean's peak predators, and so skillful that they have hardly needed to evolve in the last 150 million years.

1. Harp
2. Leopard
3. Crabeater
4. Earless

Leopard seals are massive arctic predators that can reach up to 12 feet long and weigh 1,300 pounds. They are the only seals that eat warm-blooded prey, and one of the only seals to get particularly aggressive with or rarely attack humans.

1. Almost anything
2. Squid
3. Stingrays
4. Dolphins

Bull sharks are large opportunistic hunters that are known to eat a wide range of animals. They even eat other sharks. These solitary apex predators can be found in both salt and fresh water.

1. 3
2. 7
3. 60
4. 150

Dwarf lantern sharks are among the smallest in the ocean, at about 6 inches long. The massive whale shark can get as large as 60 feet. Neither of these sharks is known to attack humans.

1. Whale shark
2. Orca
3. Blue whale
4. Beluga whale

Orca whales are massive and intelligent predators that can weigh 20,000 pounds and measure over 30 feet long. They use different tactics to catch prey, including intentionally beaching themselves in South America to catch sea lions and seals.

1. Its size
2. Not being preyed upon
3. Tooth length
4. None of the above

Apex predators have no natural predators as healthy adults in the wild. They also capture live prey.

1. Smallest
2. Most aggressive
3. Most poisonous
4. Largest

Saltwater crocs can grow to lengths of 22 feet or larger and have no natural predators. They can be found throughout Southeast Asia and parts of Africa, India, and Northern Australia.

1. The Midwest
2. The Northwest
3. The Southeast
4. The West Coast

American alligators inhabit freshwater wetlands from Texas to North Carolina. They are apex predators that will eat almost anything they come across.

1. Pink river dolphin
2. Electric ray
3. American crocodile
4. Lionfish

There are 69 species of electric ray, which can discharge between 8-220 volts. They are found in both shallow coastal waters and more than 3000 feet down in the ocean.

1. Tiny
2. Square
3. Powerful
4. Multiple

Great barracudas are a common species of barracuda that are over 2 feet long when full-grown. Found in tropical and warm temperate waters, they have powerful jaws full of sharp fangs.

1. Yes
2. No

While institutions have made numerous attempts to keep great white sharks in captivity over the years, in most cases this ended with the shark dying days or weeks in. Great whites are known to stop eating and bump into the walls in captivity.

1. Moray
2. European
3. Electric
4. Congridae

There are more than 200 species of Moray eels, but these frightening looking creatures are generally friendly. Most attacks occur when humans accidentally disrupt their burrows or try to hand feed them and the moray's poor eyesight causes them to take a finger or two by accident.

1. Yes
2. No

Saltwater crocodile attacks are often deadly, as these animals are strong, large, incredibly aggressive, and known to treat humans as prey. One or two fatal attacks occur every year in Australia. It is estimated that throughout Southeast Asia 20-30 attacks occur a year.

1. Colossal squid
2. Great white shark
3. Hammerhead shark
4. Lion's mane jellyfish

The colossal squid or Antarctic squid is the largest known invertebrate on earth. A specimen was once found with eyes that measured 11 inches in diameter.

1. Their size
2. Camouflage abilities
3. Intelligence
4. All of the above

The giant Pacific octopus is massive, the largest ever found weighing in at over 150 pounds. They are intelligent tricksters, known for recognizing individual people and wreaking havoc in the labs where scientists attempt to study them.

1. Lion's mane
2. Moon
3. Cannonball
4. Blue

Lion's mane Jellyfish are massive animals that largely live in cold oceans. The largest one ever found had a bell over 7 feet long and tentacles over 121 feet long.

1. Big mouth
2. Long lifespan
3. Gentle nature
4. Bright purple color

The Greenland Shark has the longest known lifespan of any vertebrate on earth, possibly 400 years. They live deep in the ocean and their meat is toxic.

1. Clown
2. Salmon
3. Lion
4. Tuna

Lionfish are deadly predators with beautiful and deadly spines. In humans, their venom can cause agony, convulsion, numbness and vomiting. As an invasive species with no natural predators, they took a large toll on marine diversity in the Caribbean.

1. Saltwater crocodiles
2. Giant squid
3. Baleen whales
4. Tuna

Saltwater crocodiles enjoy a varied diet on land and sea. These massive largely Southeast Asian predators eat everything from buffaloes to tigers to sharks.

1. Whale sharks
2. Killer whales
3. Dolphins
4. Mackerel

Killer whales are also known as Orcas. They are intelligent apex predators that often work together to attack prey.

1. Sperm whale
2. Great white shark
3. Orca
4. Moray eel

Sperm whales are the largest toothed predators on earth, and can reach over 60 feet in length. These massive creatures dive to the depths of the ocean where they hunt giant and colossal squids.

1. Killer whale
2. Mako shark
3. Sperm whale
4. Octopus

Sperm whales are some of the largest creatures in the ocean. They have the largest brains of any animal on earth, most of which is devoted to echolocation.

1. Great white shark
2. Giant squid
3. Whale shark
4. Blue whale

Giant squid are found in oceans across the globe and can grow to over 40 feet in length. Patterns of wounds and the stomach contents of giant squids which have washed ashore dead have led scientists to believe that they commonly attack and eat each other.

1. 1865
2. 1950
3. 2004
4. 2017

Japanese researchers took the first ever images of a live giant squid in 2004. Before that, most of what scientists knew about giant squid came from parts of their bodies which washed ashore after they died.

1. The U.S.
2. Mexico
3. The Caribbean
4. South America

The American crocodile is found mostly in South and Middle America and the Caribbean. This large species has also been found in Florida.

1. All over the world
2. Southern Ocean
3. Pacific Ocean
4. Arctic Ocean

The known range of this massive creature is north of Antarctica to the tips of South America, South Africa, and New Zealand. This animal shows deep-sea gigantism, and can be over 45 feet long and weigh over 1,600 pounds.