Modern animal (King Cobra)
Future animal (Vergrandis Crur Cobra)


IntroductionThere is no exact theory of where King Cobras originally came from but scientists first believed that the King Cobra came from Mosasaurs. Mosasaurs are the ancient animals of marine life and does not seem to connect much with the King Cobra, but the skeletal figure is similar to the King Cobra except for the fins which were believed to have evolved to come off as the it started to move into land, possibly because of predators. Another theory of The King Cobras ancestor is that it came from Terrestial land and that it came from animals such as lizards. During the late Cretaceus, Mosasaurs were the strongest in compared to other animals in the marine-life, it was first discovered in 1764 in a Dutch quarry. The Latin name "Mosa" (Mosa from Mosasaur) means the 'Meuse River' (where it was first found) and Sauros is lizard in Greek. 65 million years ago Mosasaurs vanished from this world.
external image ts_years_top.pngexternal image ts_background_eras_top.png
external image ts_periods.png
external image ts_background_h5.png
Mosasaur timeline - source -
Mosasaur timeline - source -

Scientific Classification
Howard chin
Howard chin

Labeled Diagram

Mosasuars Distribution - Source -
Mosasuars Distribution - Source -

During the end of the Cretaceus period, Mososaurs started to increase in numbers in different places around the world such as Cananda, Denmark, Australia, New Zealand, Mexico, Peru, USA, Sweden, Africa and the coast of Antarctica. Mossosaurs started to increase in numbers because they were most well adapted in the sea and did not have much threats compared to other animals.

Some Mososaurs were adapted to swimming deep in the sea but some mostly swam in shallow parts of waters, though they mostly lived in the water they were capable of breathing air. Mososaurs were perfectly fit for swimming as they had a body in a streamlined shape making it easier to maneuver from left to right easily. The Mososaurs unlike the King Cobra had had four fins which helped them with traveling speed in the water.

Mososaurs most favorite food were shellfish, turtles, fish and mollusks, these animals were hunted down then eaten. From tooth prints of Mososaurs on shells show that they repetitively bit hard onto the rock solid shell then cracked through to eat the meat inside. The Mososaurs pointy jaws and sharp teeth helped them to bite the hard shells of turtles and shellfishes so that they could eat the meat inside. Mosasaurs were meat eaters and only eat meat like the modern King Cobra.

Behavioral Adaptation

Catching prey
The Mosasaur caught prey by mostly banging onto its prey instead of hunting its prey directly as they had a advantage in size and speed and could maneuver the best in water, its large serpentine shape and sharp nose makes it easier to eat other marine life and they usually bang onto marine life that is smaller than itself.
Eating Prey
The Mosasaur does not hunt the animal down by biting, it uses its strength to bump into its prey to make it unconcious and unable to move, then killing the the prey by using it sharp teeth to penerate its meat. The Mossasaur may have evolved in this way as
they had to have sharp teeth to penetrate their favourite prey which usually have shells so they have more teeth than it used to have.

Structural Adaption

The Tongue of the Mosasaur is also in a forked shape tongue and was believed to be used under water to guide its way around to find prey, this forked tongue has a similar use as it has in modern snakes and is also used by smelling the scent around the animal to tell whether prey is close or not. The tongue flicks out in the water and receives scent from the water to detect nearby prey which cannot been seen within their visible range. The tognue evolved so that they could sense smells around them to find food incase of any injury such as eye injuries.

The Mosasaurs fins are built nearby the head and tail on both sides around its long snake like body, the fins nearby the tail were used as a rudder when making sharp turn left and right and were useful when they had to change cause when finding prey to eat.
The fins were likely to be evolved to becoming smaller as it was easier for them to manuvuer.

Psychological adaptation

Mosasaurs mainly feed on shellfish, fish and turtles, in general they like to eat animals that live in shallow water and animals that have a hard outer shell on the outside. Mosasaurs are canivourous like the modern King Cobra, they do not eat anything such as plantae as its sharp teeth will becom blunt and would be like humans teeth nowadays if they ate vegetables. They evolved to eat shelled animals as they liked the tender meat inside the the shallow water.

Extinction pressure
The reason for the Mosasaurs becoming exctinct is still unknown but during the late Cretaceus period there was the mass extinction of dinosaurs and animals and all animals above 25kg were all gone from the world. There are many different theories on how they died out but I believe that they became extinct as there was some sort of climate change which killed the animals which were not sheltered and the animals which were not used to running away because they were to heavy to run away or their body size was too big and they could not run away from changes in climate change.

Snake ancestors. (n.d.). Facts About Snakes, Species, Characteristics, World's Deadliest Snakes. Retrieved July 29, 2010, from

Snake Ancestors Lost Limbs on Land, Study Says. (n.d.). Daily Nature and Science News and Headlines | National Geographic News. Retrieved July 29, 2010,

BBC - Science & Nature - Sea Monsters - Fact File: Giant Mosasaur. (n.d.). BBC - Homepage. Retrieved July 29, 2010, from
Mosasaur- Enchanted Learning Software. (n.d.). ENCHANTED LEARNING HOME PAGE. Retrieved July 29, 2010, from


About Mosasaurs - Dallasaurus - SMU. (n.d.). Southern Methodist University - SMU . Retrieved July 29, 2010, from
Strauss, B. (n.d.). Mosasaurs - All About Mosasaurs, the Marine Predators of the Late Cretaceous. Dinosaurs - Types, Behavior and Evolution of Dinosaurs. Retrieved July 29, 2010, from