Selasa, 29 November 2011

4 The Ancient Animal Species Living in Indonesia(4 Spesies Hewan Purba Yang Masih Hidup di Indonesia)

1. Crocodile
As we all know the dangers alligator is one of ancient animals that left the earth. Crocodiles are carnivores animals that can live in water and land. Indonesia has a total of seven species of crocodiles of all species of crocodiles that exist in the world.
Crocodile species found in Indonesia, among others:
# Buaya muara (Crocodylus porosus) :
 Estuarine crocodile is the largest crocodile species, the longest and most vicious among other types of crocodile in the world. Estuarine crocodile habitat also has a very wide distribution, even the largest crocodile species than others. Estuarine crocodiles can be found from the Bay of Bengal (India, Sri Lanka, and Bangladesh) to the Fiji Islands. Indonesia became a favorite habitat for estuarine crocodiles other than Australia.

#Buaya irian (Crocodylus novaeguineae)
Irian crocodiles exist only on the island of New Guinea (Indonesia and Papua New Guinea). Body shape crocodiles that live in fresh water estuarine crocodile is just like a smaller and darker in color

#Buaya mindoro (Crocodylus mindorensis)
Mindoro crocodile originally included subspecies (subspecies) of Irian crocodile (Crocodylus novaeguineae) crocodiles but this is now regarded as separate species. Mindoro crocodile in Indonesia can be found in eastern and southeastern Sulawesi.


#Buaya kalimantan (Crocodylus raninus)
 Borneo crocodile has characteristics similar to the estuarine crocodile. Because of that crocodile that can only be found in East Kalimantan and South Kalimantan, this status is still being debated experts.

#Buaya siam atau buaya air tawar (Crocodylus siamensis)
 Siamese crocodiles are thought to originate from Siam. Siamese crocodiles than in Indonesia can be found also in Thailand, Vietnam, Malaysia, Laos, and Cambodia. In Indonesia, Siamese crocodiles found only in Java and Sahul Kalimantan



#Buaya sahul (Crocodylus novaeguineae)
 Crocodile Sahul actually the same or are still considered a single species with a crocodile Irian. But by some taxonomists Sahul crocodiles are only found in southern Papua was proposed to be a separate species.


#Buaya senyulong (Tomistoma schlegelii)
 Crocodile senyulong scattered in Sumatra, Borneo, and Java. What distinguishes a crocodile senyulong with other crocodile species is relatively narrow snout.


2. Komodo

Komodo, or commonly called Komodo dragons (Varanus komodoensis), is the largest lizard in the world with a body length reaches 2-3 meters and weighing 70-140 kg achieved. Large size is associated with symptoms of island gigantism, the tendency for body meraksasanya certain animals that live on a small island linked to the absence of carnivorous mammals in the island where dragons live, and the rate of metabolism of small dragons. Because of her size, these lizards occupy the position of a top predator that dominate the ecosystems in which they live.

Komodo is the only living ancient dinasaurus (endemic) in Indonesia alone, precisely in Komodo Island National Park. Even so dragons can also be found on two other islands around the Komodo islands, the island of Rinca and Padar Island.
Secrets of Komodo Lizard can survive for up to 40 million years is because he has a natural defense system life found in nails and saliva. Komodo dragon's saliva angat deadly because it contains 66 types of deadly bacteria. Another Rhasia why dragons can survive this way ualah karean dragons reproduce very privileges. Komodo dragons can lay eggs without a male (parthenogenesis).


3.Coelacanth (Ancient Sea King Fish)

King Fish Coelacanth is a fish of the sea or a lot of ancient life at 360 million years ago. Sea King Fish Coelacanth is now known as the only two species of Latimeria menadoensis (Indonesian coelacanth) and Latimeria chalumnae (Coelacanth Comoro). While many other types, some 120 species, have been declared extinct and only found fossil only.

Coelacanth is a fish-lung berparu most experts believed to be the ancestors of tetrapods, the ancestor of land-dwelling animals including humans. King of the sea or the coelacanth fish habitat in the ocean has a deep, 700 meters below sea level. Although sometimes these ancient fish could be dikedalaman sea 200 meters.

In 1998, a fish caught sea king fishing nets in the waters of Manado Tua Island, North Sulawesi. Fish of this type is already commonly known by local fishermen terdiskripsikan but not until an American researcher who lives in Manado, Mark Erdmann and several friends, including LIPI scientists publish and later king of marine fish is referred to as a new species, Latimeria menadoensis (Sulawesi coelacanth).

Between the king of the sea fish species Latimeria chalumnae (Coelacanth Comoro) and Latimeria menadoensis (Sulawesi coelacanth) have similar characteristics. Ancient fish is shaped like a fan with huge eyes and scales that look is not perfect (like stone). Reach 2 meters in length with a weight of 80-100 kg achieved. The difference found in skin color is brown menadoensis Latimeria Latimeria chalumnae while blue steel.


4. Arowana(Arwana)

According to an ancient group Osteoglossids, these fish are already there in the Jurassic period. Currently, they can be found in the Amazon, and in some parts of Africa, Asia and Australia
Sometimes kept as exotic pets, arowanas are voracious predators that eat the small animals they can catch, including birds and bats which they catch in mid-flight (they can jump up to 2 meters (6 '6 ") into the air).
In China, arowana known as "Dragon Fish" because of their appearance, and they are considered carriers of luck / Good luck.


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