How Piranhas are the most dangerous fish for human beings?

Piranha 

Piranha is an aggressive fish and a meat eater. Because of its aggressiveness, it is known as a dangerous fish amid many people. It is even known as a great white shark. There are nearly 25 species of piranha. Piranhas are sharp toothed fish having deep bodies. You will find their bodies flattened on both of their sides. The color of their bodies is usually olive green and red belly. They are carnivorous fish that usually grow up to 15 to 25 cm. 

There are a few fishes that have been seen in a size of 40 cm long too.Their mouth is open. Teeth of these species are visible. Red piranha is the most famous fish in piranha family that grows up to nearly 30 cm.

The deep sea fish called piranhas is found all over South America and are fresh water fish. Such fish prefer to live in shallow water however may be even found in the deeper water of the river. It has been observed that the attack of such fish is rare on human being but very dangerous. It has been even also observed that swimming in piranhas infected water is very risky at the time of especially drought season. It is because during drought season, there is food shortage for piranhas and hence they become violent and attack on human being.

Piranhas

Piranhas have the similar sensory capability, which sharks have. They may sense blood from distant place. Such fishes are risky if any person enters into piranha infected water having a scratch. Group of such fish may turn into a horse within some time if attacked. But such stories do not have any proof however they attack severely on the smell of blood. Piranhas are mainly found in Guianas, Amazonian river and Paraguayan river. These fish prefer living in groups but can be found in small groups too. We can take an example to prove how piranhas are dangerous sea animals and fish for human being. Once in a South American Jungle river, a man was fishing. He suddenly fell from his canoe hence he shouted for help. Another canoe came there for his help. Even if his hands were hanging on the canoe, he was dead. From that man’s waist down, piranha had left just a skeleton.

Life Cycle of Tiger Shark

The tiger shark (Galeocerdo cuvier), is a species which belongs to requiem shark and it is the only member of the genus Galeocerdo. Tiger sharks are large in size and grow up to a size of about 5 m in length. These sharks mature when they reach up to a length of (2 to 3 m). These sharks are found in tropical and temperate oceans. It is most common around central Pacific islands. The Tiger Shark got this name because of the black, tiger-like markings on its body. The tiger shark is considered as one of the most dangerous sharks to humans. However, the research says just opposite to what people feel. The attack rate is very low according to the research. The great white shark is considered to be the first on the basis of human attack. But, these sharks are in the list of threatened species.

Tiger  Shark

Tiger Shark Description

The tiger shark can be distinguished from the other sharks on the basis of their characteristics and body shape. These sharks have a broad, flat head with a snout, which is shorter than the width of the mouth. They have long labial furrows, and a slender body. Their caudal fin is long and pointed and has ridges on it. These sharks have sharp teeth with curved cusps. The juvenile of these species grow up to the size of (150 to 180) cm in length. These tiger sharks can vary in color from bluish or greenish gray to black on the upper part, and light gray to dirty yellow or white on the lower part.

Tiger Shark Habitat

Tiger sharks are found in the oceanic waters as well as in shallow coastal waters. The tiger shark can be seen in both tropical and temperate waters.

Tiger  Shark

Tiger Shark Diet

The tiger shark likes to move alone. They hunt mostly at night. These sharks feed on wide range of prey, such as  squids, crustaceans, fish, seals, birds, smaller sharks, sea snakes, turtles and dolphins. These sharks have characteristics that they can survive on wide range of food and this is the reason they are also called as the most adaptable of all shark species.

Tiger Shark Reproduction

These species reach sexual maturity when it grows up to a size of (2.3 to 2.9) meters in male and (2.5 to 3.5) meters in female respectively. The female tiger sharks are known to mate once every three years. The tiger sharks breed by the process of internal fertilization. During mating, the male inserts its one of the claspers into the female's cloaca. The males use their teeth to hold the female during the mating process. The tiger shark is the only species in their family that is ovoviviparous. It means their eggs hatch internally and the young are born live when fully developed. The baby tiger sharks are (51 to 76) cm in length. The life span of these species is not known accurately but most often they can live longer than 12 years.

Have you seen these pretty birds??

California Gull

Albatross

Puffin

Eider

Booby

Frigate Bird

Jaeger

Franklin's Gull

Different Types of Sea Crabs

Sea Crab

Red Sea Crab

Fiddler Crab

Horse Shoe Crab

Coconut Crab

Japanese Spider Crab

Dungeness Crab

Alaskan King Crab

Blue Crab

Hermit Crabs

For more information on all the sea animals. Please visit here http://www.allthesea.com

where you will get a fabulous information on real sea life.

Various Types of Aquarium Fishes is Here

Lionfish

Imperator angelfish

X-ray Tetra Fish

Marine Fish

Gold Fish

Rainbow Fish

Difference between sea lobsters and sea crabs

Feeding Habits

Sea lobsters are omnivorous and eat small sea fish, mollusks, starfish, worms, plant life etc. Sea crabs are also omnivorous, but they have very healthy diet of plants and small animals.

Sea Lobster

Habitat

Sea lobsters are usually found in oceans, muddy bottoms, shorelines, or even in the edge of continental shelf. While sea crabs are found in ocean and on the land in tropical areas.

Sea Crab

Physical Features

Sea lobsters have ten legs, which help them to walk and in the front, there are two modified claws, which are large. While sea crabs are identified by their short tails and small abdomen.

External Parasites in Cat

Cats have been petted since as early as 3500 BC. Egyptians domesticated wild cats from Africa. These wildcats then became the most treasured pets. Cats have fascinated the literary stalwarts like T. S. Eliot who wrote a collection of poems called “Id Possum’s Book of Practical Cats”. This collection was about feline psychology and sociology. Considering the fascination for cats that we humans have, we also need to take care of them as we pet them. Cats need to be taken care of though it is a known fact that they are very hygienic. Cat care and cat health is of utmost importance if you have a pet cat. From a young age, cats get infested with external parasites. Most common of them are ticks on cats, lice, fleas, or cat mites. This infestation causes skin irritation. It is also a reason for cat illnesses.

Cat Care

There are many safe anti-parasitic treatments that can be used on a long-term basis to protect your pet cat from the external parasites. Parasites are organisms that feed on other creatures to survive. Generally, among cats they live on and feed on cat’s blood. Detecting internal ones are difficult. But, when you have a close look at the skin and fur you can detect and uncover their traces like ear mites and fleas. 

Worms are internal parasites in cats.

Ear mites:

They take residence in the cat’s ear canals. As they feed on them, they create an intense itching. It scratches behind her ears and violently shakes her head regularly. When you peep inside her ears, you will see dark flecks that look like coffee grounds; these are actually mites’ droppings. If you suspect ear mites in cats, contact a veterinarian.

Coccidia:

Coccidia are microscopic parasites. They live within the lining of the intestines in the cells. When they are left untreated, cats become weak and dehydrated. Coccidiosis is treatable. But, drugs do not kill these parasites, but inhibit their reproduction. Elimination of these parasites from the intestine is very slow.

Ringworm:

It is not a worm in the true sense, but rather the name for a type of fungus. This fungus is related to the fungus that causes athlete’s foot in humans. It causes discomfort, but is very contagious to cats and humans too. When left untreated, it weakens the immune system. It leaves your cat to other diseases too.

fleas in cats

Fleas:

They are the most infamous external parasites in cats. They eat no more than a drop of blood each. A flea can cause anemia and even death in cats. It sucks the life from the cat and the fleas transmit tapeworms. Just a few cat fleas can cause discomfort in cats, especially if she is allergic to fleabites. The best way is to prevent fleas before they attack your cat. 

Life Cycle of Estuarine crocodile

Introduction:

Estuarine Crocodile has become a protected species since 1970 because earlier intense hunting had drastically reduced numbers though crocodile’s numbers have increased. Many crocodile’s are still lost, drowned in fishing nets etc. This dangerous large crocodile’s are relocated from human contact.

sea crocodile

Features of Estuarine crocodile:

The Estuarine saltwater crocodile is one of the most aggressive and dangerous crocodiles. It is the world’s largest reptile the estuarine or salt-water crocodile has a broad snout with cone-shaped teeth. Its average length is five meters but males crocodile are of six to seven meters. Estuarine Crocodile have many bony scales on their neck and back, mainly grayish brown with brown and yellow sides. Their feet are webbed for swimming. It is assumed that they live up to 70 to 100 years. They have clear eyelids, which enable them to see underwater.

Feeding:

The feeding strategy of this crocodile is different; they wait very close to the water's edge and suddenly attack upon its victim in the blink of an eye. The prey of younger crocodile is smaller animals such as deep sea fishes, crabs, insects etc. Adults can also pounce and eat larger animals by drowning them, for example fish, 

sea turtles, sea birds and mammals even domestic cattle and humans.

Breeding in crocodile

Breeding

The nesting takes place in the rainy season after males fight for the female’s crocodiles. The female estuarine crocodile generally builds a nesting heap of vegetation, that contains mud and soil and it lays 40 and 60 eggs inside the heap of soil and mud. This heap raises the eggs above the water level. Female crocodile protects the nest for three months until the young crocodile comes out of the egg. After the young ones come out of the egg, the female crocodile carefully carries her young ones in her mouth and takes them to the water.

Eggs of crocodile

Female or male crocodile at birth?

Isn’t it sounding amazing?  But it’s true. The temperature of the water in which the egg is kept determines the sex of the baby crocodile. If the egg is kept at 32.6 degrees Celsius then it will be male crocodile in the same way if the water is hot or cold it will be a female crocodile.

Thermoregulation behaviors of estuarine crocodile:

Often you will see an estuarine crocodile opening its mouth.  This is because the crocodile wants to cool down, and therefore a lot of their time is spent in thermoregulation as they try to maintain their body temperature between 30 to 32 degrees Celsius as Crocodiles are regarded as cold-blooded reptile.

Thermoregulation behaviors in crocodile

Their Enemies:

 These crocodiles were once hunted by humans. In many countries, like Australia, hunting of crocodile or any other sea animals is illegal, but still in many parts of Australia and in other countries they are still hunted by the hunters. In Australia, the population of these crocodiles are 100 000. Humans are not their only enemies. On the island of Sri Lanka, there are feral buffalo that destroy their habitats. On the other hand, lizards and wild pigs eat their eggs, and turtles eat the baby crocodiles.

Cool Dolphin's World

The scientific name of dolphin is Delphinidae delphis. There are thirty-two types of dolphins. These types of dolphins live in salt water. There are also five types of stream dolphins that live in river water. The sea water types of dolphins are sub-divided into seventeen genera and stream types of dolphins are sub-divided into four genera. All class of dolphins is categorized as Cetaceans, along with sea whales.

Dolphins

Bottle Nose Dolphin:

Bottlenose dolphins are, scientifically known as Tursiops. They are the most familiar and well-known members of the family Delphinidae. Current molecular studies show the genus consists of two species, the widespread bottlenose dolphin and the Indo-Pacific bottlenose dolphin scientifically known as Tursiops aduncus. They dwell in warm and temperate seas worldwide.

Behavior:

Bottlenose dolphins exist in groups typically of 10–40 members, called pods. Their diet includes forage marine fish. Dolphins often work as a group to yield fish schools, but they also chase individually. Dolphins hunt for prey mainly using echolocation, which is like sonar. They produce clicking sounds and pay attention to the return reverberation to verify the position and shape of nearby things, as well as potential prey. Bottlenose dolphins are considered as one of the cleverest sea mammals on earth. 

Diet:

It depends on diverse things, place, size, the food supply production and their species. It can differ but the type of food mainly consists of fish, anchovies, cephalopods, sea turtles, shrimps, squids, sea crabs, krill, cod, seals, octopus, little dolphins and baby whales.

Dolphins

 Life span:

The life span may differ from 10 years for a dolphin up to over 50 years old

Breeding:

Females seem to be sexually interested during a large part of the year and are usually liable for initiating courtship and reproduction behavior. There is no reproduction season for dolphins. They reproduce 365 days a year.