Silverfish, prehistoric animal still alive.


All prehistoric animal lovers, we like to discover that, although not a Megalodon or a giant short-faced bear, we can delight with the observation of a tiny prehistoric animals still alive, a being that has not changed for 400 million years and for more joy, it is possible that we have at home.

These animals are called silverfish, fishmoths, carpet sharks or paramites, and are on earth so long ago that saw come and go trilobites, Dunkleosteus, at the very Hurdia Victoria, the well-known T-Rex and even our ancestors like Australopithecus.

This is a prehistoric animal in wingless insects have a long, excluding its limbs, about an inch.
Its metallic luster of the body is due to its silvery scales, which appear after the third molt.

He lives in damp and dark, most often in older buildings, or between books and papers at home.

They feed on carbohydrates such as starch or other polysaccharides. They can also digest cellulose, textiles drilling starch, sugar, hair, dandruff, dirt and mildew, books, cotton, linen, silk, including artificial silk, dead insects or even its own exuvia (shed skin) and mites.
Driven by famine, a silverfish may even indulge skin with clothing (leather) and some fabrics made with synthetic fibers. However, like many insects, is capable of interrupting their vital activity for several months without appreciable harm.




His top predator are earwigs, house centipedes and spiders




Anyway, I personally think that seeing this animal is a privilege and a gift, it is also harmless to humans (not like cockroaches), and I find it funny when turning on a light or stop run to the small, dark recesses the bathroom ... Probably been that way (hide and seek food in the dark) and have survived so many predators, so many changes in climate, so many disasters, wars and so many years. So next time you see one and go to step on it, think that this is a prehistoric animal.

Daspletosaurus


THE TERRIBLE carnivorous reptiles. That was the name we put this dinosaur, Daspletosaurus. It was another prehistoric animal Tyranosaurido fierce-looking and although a little smaller than its cousin the famous Tyranosaurio. Even being smaller, this dinosaur was a predator that stood at the top of the food chain and devouring other animals such as large or some Ceratopsidae hadrosaurids (horned Triceratops) of several tons.

Possibly, his name is due to the impression that was taxed in the retina of the paleontologists who discovered it: a huge head of 1 meter with 72 serrated teeth, long and sharp with heterodoncia (specialized teeth). Measuring up to 9 meters long and it is estimated that almost could have reached the 4,000 kg.

A feature to highlight in this prehistoric predator was his strong neck and a strong legs (compared with other similar sized tyranosauridos.

The strong hind legs brought him agility and speed in racing, and a starting power and strength to pursue valuable prey. It was really a terrible carnivore and fast.



On the strength of his neck, holding a skull strong armed indeed, its function was to hold its prey. Since its forelegs were minimal and not very useful, Daspletosaurus used their strong teeth to catch and mortally wound its prey. Grab their prey with a bite bowed numerous sharp teeth and retained and the onslaught endured and the struggles of its prey with its powerful neck.


The Daspletosaurus lived in North America in the Cretaceous period about 75 million years.

In the video below looks like a group of successful practice Daspletosaurus a hunt. (Up to 4.40 min)




Quetzalcoatlus.

One of the first animals that we put in the blog was the big Azhdarchidae. Huge pterosaur (flying reptiles) with a wingspan of 10 meters. Well, now the largest pterosaur know all ... indeed is considered the largest flying animal of history: the Quetzalcoatlus.


The Quetzalcoatlus was by far the largest flying animal. For example, a current condor reaches 3.3 meters (11 ft) , 3.6 meters (12 ft) of an albatross, a magnificiens Argentinavis reached the 8 meters (26 ft) wingspan, large Azhdarchidae reached the 10 meters (33 ft) ... but the Quetzalcoatlus reached 15 meters (48 ft) . And while most current research suggests that reached 12 meters, still the largest flying animal ever.

The most representative species of this genus is the northropi Quetzalcoatlus, a pterosaur, with a similar appearance to other pterosaurs had a long beak, sharp and toothless. With a small head and a ridge height of almost 5 meters (16 ft) when placed standing, weighing 200 kg (450 lb) . To think that 200 kg (450 lb) is a lot for a flying animal, for example, weighs 12 kg (25 lb) condor, so some experts believe that weighed much less ... about 80 kg.


It lived in the Upper Cretaceous (Maastrichtian ago by 68-65.5 million years ago) in North America.



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