Ocean Animals!

The largest seahorses, measured from the tip of their tail to the top of their head, can be 12 inches long--that's one foot. The smallest seahorses--pygmy seahorses--get no bigger than 1 inch. On average, seahorse seem to be around 3 to 6 inches long. They can weigh from several milligrams at birth to several grams as an adult. The natural lifespans for seahorses are virtually unknown. Most estimates come from laboratory or aquarium observations. Known lifespans for seahorse species range from about one year in the smaller species, to an average of three to five years for the larger species. Here are some pictures of seahorses!

Well thats all for now cya later Hiki

well its a coincidence i did it also about sea horses
this is mine

i know that the pic is funny. its hard to do one trust me

wonder about sharks?

The electric eel:

i like reeters facts there so intresting

Here are simple facts like Hiki wanted about 2 awesome creatures:
Ichthyosaurus:
Dolphin-like but much bigger at 10 meters, this fish-eater roamed the seas 225 million years ago.

Plesiosaurus:
Skeletons of this 5 meter long creature were found on the coast of England over 200 years ago. Many people believed that this is the famous Loch Ness monster from Scotland, although it lived over 200 million years ago!

The first out of the water:
The first creatures to come out of the water were the lobe-finned fish that were developing lungs. The first amphibian was the Ichthyostega that had strong legs for walking on land. It may have begun to leave the water searching for food in dry times.
Here is sthe Ichyostega:

The Lobe-Finned Fish:

Sharks are awesome creatures. Most sharks have 4 gills so they can breath underwater. They have to keep moving or they will drown. Their is one shark that can breath without moving it is called the angel shark. Their is also one shark that has 5 gills. It is located in the Arctic. There are over 100 different types of sharks.

Interesting Facts About Sharks!
1) Did you know there are about 350 different types of sharks, but researchers think there are other sharks that haven't been discovered yet?

2) The smallest shark, the dwarf shark, can be as small as your hand but the largest shark, the whale shark, can be as big as a school bus!

3) Most sharks live for about 25 years, while some of them can live to be a 100 years.

4) Most sharks can swim up to 20-40 miles per hour.

5) The Whale shark is considered the biggest fish in the world,it weighs about 90,000 pounds!

6)Some sharks lay eggs, while most of them give birth to babies. The Hammerhead and Tiger shark can have as many as 40 babies at one time, while the others can have six to twelve.
There are many more iteresting facts about sharks but i didnt want to write 500 facts about sharks so 6 is good

I,m sorry Hiki i know you like pictures with this info. but it won't let me for some reason and now I probaly wont win well cya later Hiki

boblonja wrote:artic and jedi copied that from wikipedia not fair

I did not copy from Wiki, I went to Wiki and wrote the information in my own words!

Jedilachlan

Flying Fish

The euphotic zone is where sunlight is able to penetrate. This is the well lit zone.The euphotic zone is filled with many different plants and animals.Examples of the animals are Flying Fishes, Moray Eels, Cleaner Wrasse, Sea Cucumber and Anemone, Pearlfish, Doctor’s Mortar, Sea Pens, Sawfish, Pacific Angel Shark, Orange Sea Cucumber, Manta Ray, Remora, Anchovies, Banded Sea Snake and Ocean Sunfish.

THE MESOPELAGIC ZONE 500 TO 3,000 FEET

This zone is also known as the middle ocean zone. It is too dark for plants to grow. Sharks and other streamlined fish are able to swim to these depths to hunt. Animals in this zone survive by eating each other and scavenging dead animals.The animals are the Hammerhead Shark, Giant Squid, Gulper Eel, Crustacean, Luminous Prawn, Lantern Fish, Headlamp Fish and Sea Spider.

The Gulper Eel

THE BATHYPELAGIC ZONE 3,300 TO 10,000 FEET

sperm whale.jpg (3819 bytes)

Sperm Whale

This zone is known as the deep ocean sea. This area is pitch black. Food is scarce in these depths. The fish of this zone have weak, soft bodies.The animals are the Hatchetfish, Deep-sea Anglerfish, Oarfish, Squid, Viperfish and Sperm Whales.

THE ABYSSAL ZONE 10,000 TO 36,000 FEET

The Tube Worm

The animals are the Anglerfish, Deep-sea Jellyfish, Venus’s Flower Baskets, Brittle Stars, Rat Tails, Deep-sea Shrimp, Deep-sea Anglers, Abyssal Sea Cucumbers, Stalked Crinoids, Brotulids, Tripod Fish, Lampshells, Tube Worms, Deep-sea Swimming Sea Cucumber, Sea Snails, Abyssal Octopus, Deep-sea Eel, and Gulper Eel.

THE OCEANS

There are four oceans. They are the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, and the Arctic Ocean. Oceans comprise 75% of the Earth.

* The Pacific Ocean is the largest and deepest ocean in the world.
* It covers 63, 800,000 square miles (165, 200, 000 square kilometers).
* The Pacific Ocean is so big it could fit all of the Earth’s continents.
* Near the Equator the Pacific Ocean stretches 11,000 miles, almost half way around the world.
* The deepest known spot in the ocean is the Mariana Trench, southwest of Guam, it is 36, 198 feet below the surface (11,033 meters).
* The word pacific means peaceful. However, the Pacific Ocean is far from peaceful. Thousands of volcanoes rise up from the Pacific Ocean.

* The Atlantic Ocean is the second largest body of water.
* The Atlantic Ocean covers about 31, 530,00 square miles (81, 662, 000 square kilometers).
* Its average depth is about 14,000 feet (4,270 meters).
* The deepest part of the Atlantic Ocean is the Puerto Rico Trench 28, 374 feet (8,648 meters).

* The Indian Ocean is smaller than the Atlantic.
* The Indian Ocean covers about 28,356,000 square miles (73,441,700 square kilometers.
* The deepest spot is 25,344 feet (7,725 meters) is south of Java.

* The Arctic Ocean lies at the top of the world.
* The Arctic covers about 3,662,000 square miles (9,485,100 square kilometers).
* Its greatest depth is 17,880 feet (5,450 meters).

Seawater Composition

* Seawater contains an average of 3.5% salt
* Contains magnesium, sulfur, and calcium.
* Seawater contains all of the elements from the Earth’s crust.
* Salts in seawater help swimmers float.

Life in the Ocean

* All life in the ocean is divided into three main groups. They are plankton, nekton, and benthos.
* Plankton are all of the creatures in the sea that drift and float and rely on the tides to move them from place to place.
* Plankton are all microscopic. They are either phytoplankton (microscopic plants) or zooplankton (jellyfish, copepods, arrowworms).
* Many animals rely on plankton for their existence.

* Nekton are all of the animals in the ocean that are able to swim on their own, without the help of the tides. This includes over 20,000 fish in the sea. These animals range in size from sharks which 50 feet in length to fish which are less than an inch long.
* Most nekton have streamlined bodies to help them swim more effeciently.
* Some nekton can travel at remarkable speeds. The sailfish can swim up to 30 miles an hour.
* Many nektonic animals are able to swim vast distances. For example, the eel can travel thousands of miles.

* Benthos are animals which live at the bottom of the sea.
* Examples of benthotic animals are sea snails, clams, sponges, sea lilies, and starfish.

Continental Shelf

* Places in the oceans where the land slopes to about 600 feet. This underwater land is called a continental shelf.
* The continental shelf extends hundreds of miles in certain places.
* The shelf is covered by continental deposit, which has been carried by rivers into the ocean.
* The continental shelf slopes down to the continental edge. This is where the continental slope begins.
* The continental slope extends to the abyss, or the bottom of the ocean.
* There are mountains which rise from the ocean floor, and many are volcanoes.
* There is a mountain range that extends 10,000 miles along the Atlantic Ocean. It is called the Mid-Atlantic Range.

The Tides

* Tides are caused by the gravitational pull of the moon.
* During full or new moons, the earth, the sun, and the moon are in a straight line, at this time the sun and the moon combine the gravitational pull . This results in the incoming tides at their highest and the outgoing tides at their lowest. This is called a spring tide.
* When the moon phases into quarters, the sun and the moon are at right angles to one another, and this results in a neap tide. The neap tides are neither high nor low.
by floppyjacky thats my chobot name

Great White Shark:

Topics:
-Description
-Ranges
-Threats
-Diet
-Breaching
-Fast Facts
-Jaws

Description: Often thought as the most ferocious predator of the seas the great white shark has been hugely exaggerated by the media. This fish has a pointed snout, two large, sickleshaped pectoral fins and a large triangular dorsal fin. The mouth contains an array of sharp, pointy teeth, their generic name comes from the Greek word carcharos for ragged and odon for tooth. These sharks are grey or bronze at the top and white at the bottom. They are able to sense electric fields through sensors in the snout and have an acute sense of smell.

Ranges: Great white sharks can be found throughout the worlds oceans, mainly in temperate and even warm waters but can still be located in colder environments. During migration, the adult sharks can undertake a long return migrations, while the younger ones must stay closer to shore, but migration can also be done through a long-distance.

Threats: Great white sharks are heavily distributed although have slow reproduction rates meaning it takes a long time for them to come make from their depleted numbers. Sharks which are caught either deliberately or accidently are sold for their oil, skins, flesh and fins for shark-fin soup. The teeth and jaws of sharks are quite valuable, recently one was valued at US $50 000. Game fishing's popularity has recently increased and the great white is considered as one of the best things to catch because of its huge resistance to capture, its great size and reputation as the most dangerous fish in the ocean. Unfortunately, because of its curiosity, which is actually a good quality, sharks investigate human activities making them fairly vulnerable to capture.

Diet: The great white shark eats a range food. Some of these include other sharks and marine animals, including dolphins and Cape Fur Seals. At shark alley, the seals are at constant fear of their lives. Normally the great white is a migratory predator, but with so many tasy seals at your fingertips you should you leave?

Breaching: GWs regularly breach by Seal Island and in False Bay. There are certain areas around the island where the depth of the water is perfect for a shark to launch its attack on a seal. After viewing how quick and agile the seals are from the boat it sounds logical to say that sharks breach to catch the seals offguard. The seal is a slippery character and can dance its way out of the jaws of a great white. Many have witnessed a GW hopelessly trying to catch a lightning fast seal that is constantly changing dirrection to avoid its jaws. The great white is a very intelligent hunter and what tends to happen is the GW partrols the murky depths watching for the surface for the silhouette of the seal. Then the shark accelerates from the bottom to surprise the oblivious seal.

A breach is when a shark shoots out of the water and becomes entirely airborne and does this in order to catch its prey which is usually a seal
(picture from http://wetpixel.smugmug.com/gallery/3428718_p8i9v/1/192195270_4mXe6/Medium )

Type: Fish

Diet: Carnivore

Size: 4.6m (15ft) to more than 6m (20ft)

Weight: 5 000 lbs (2 268kg) or more

Group Name: School or shoal

Did You Know? They can detect 1 drop of blood in 25 galleons (100 litres) of water and can sense tiny amounts of blood in the water up to 3 miles (5 kilometres) away

Status: Endangered

Size Relative: Related to a bus

Jaws: This was the movie that changed everything. Jaws is where peoples fear of sharks were truly brought out.

Director	Steven Spielburg
Producers	David Brown Richard D. Zanuck
Writers	Peter Benchley Carl Gottlieb Howard Sackler
Actors	Roy Shneider Richard Dreyfuss Robert Shaw Lorraine Gary Murray Hamilton
Music	John Williams
Cinematography	Bill Buttler
Editor	Verna Fields
Distributor	Universal Pictures
Running Time	124 minutes
Country	USA
Language	English
Budget	$7 milllion
Gross Revenue	$470 653 000
Sequel	Jaws 2

I hope you have learnt something new in my brief report.
thx for reading it
-Swifty

My research is about the hammerhead shark

The hammerhead sharks are a group of sharks in the family Sphyrnidae, so named for the unusual and distinctive structure of their heads, which are flattened and laterally extended into a "hammer" shape called a "cephalofoil". Most hammerhead species are placed in the genus Sphyrna; some authorities place the winghead shark in its own genus, Eusphyra. Many, not necessarily mutually exclusive, functions have been proposed for the cephalofoil, including sensory reception, maneuvering, and prey manipulation. Hammerheads are found worldwide in warmer waters along coastlines and continental shelves.

Reproduction in the hammerhead shark occurs once a year with each litter containing 30 to 50 pups. Hammerhead shark mating courtship is a violent affair. The male will bite the female until she acquiesces, allowing mating to occur. The hammerhead shark has internal fertilization which creates a safe environment for the sperm to unite with the egg. The embryo develops within the female inside a placenta and is fed through an umbilical cord, their viviparity making them similar to mammals. The gestation period is 10 to 12 months. Once the pups are born the parents do not stay with them and they are left to fend for themselves. Young hammerheads are often born headfirst, with the tip of their hammerhead folded backward to make them more streamlined for birth. A world-record 1,280 pound (580 kg) pregnant female was caught off Boca Grande, Florida on May 23, 2006. The shark was carrying 55 pups, which suggests scientists had previously underestimated the number of pups per gestation.
Since sharks do not have mineralized bones and rarely fossilize, it is their teeth alone that are commonly found as fossils. The hammerheads seem closely related to the carcharhinid sharks that evolved during the mid-Tertiary Period. Because the teeth of hammerheads resemble those of some carcharhinids, it has been difficult to determine when hammerheads first appeared. It is probable that the hammerheads evolved during the late Eocene, Oligocene or early Miocene.
The great hammerhead shark is the largest species of hammerhead shark and one of the few species of hammerhead shark that is potentially dangerous to humans. This is due to the sheer size of the giant hammerhead shark and also because the giant hammerhead is known to have an aggressive temperament. Other species of hammerhead shark tend to pose little or no threat to humans as these species of hammerhead shark are generally much smaller than the giant hammerhead shark and are slightly calmer in their nature.



~~hunter~~

Cow sharks, or the Hexanchidae, are a family of sharks characterized by extra pairs of gill slits. There are probably only two seven-gilled genera, Heptranchias and Notoryhncus[2].

Cow sharks are considered the most primitive of all the sharks, because their skeletons resemble those of ancient extinct forms, with few modern adaptations. Their excretory and digestive systems are also unspecialised, suggesting that they may resemble those of primitive shark ancestors. Their most distinctive feature, however, is the presence of a sixth, and, in two genera, a seventh, gill slit, in addition to the five found in all other sharks.[3] They range from 1.4 metres (4.6 ft) to 4.8 metres (16 ft) in adult body length.

Cow sharks are ovoviviparous, with the mother retaining the egg-cases in her body until they hatch. They feed on relatively large fish of all kinds, including other sharks, as well as on crustaceans and carrion.

Species
There are just four species of cow shark, in three genera:[1]

Genera Heptranchias
Sharpnose seven-gill shark, Heptranchias perlo (Bonnaterre, 1788)
Genera Hexanchus
Bluntnose sixgill shark, Hexanchus griseus (Bonnaterre, 1788)
Bigeye sixgill shark, Hexanchus nakamurai Teng, 1962
Genera Notorynchus
Broadnose sevengill shark, Notorynchus cepedianus (Péron, 1807)



COW SHARK

THIS IS A REALLY WEIRD SHARK

COW SHARK TOOTH

COW SHARK

DEEP WATER SHARK

As i know, sharks has long and sharp teeths..
they ussually eat fishes, and even humans..
sharks live in oceans (body of water)
sharks is very brave LOL!
and sharks has a hearing and feeling sense
wich they can hear and feel something directly.
Well thats all i know about sharks ! lol

heres mah drawing:





-dianamisaki

Yay! Interesting topics guys!