WASHINGTON, July 4 (Xinhua) -- Scientists have discovered fossils belonging to an ancient, extinct crocodile relative that has deep and massive jaw bones armed with enormous serrated teeth like those of a T-rex, according to a new study published Tuesday.
The animal, found in Madagascar in Africa, was a top land predator of the Middle Jurassic period, when dinosaurs ruled the Earth, according to the study published in the peer-reviewed journal PeerJ by Italian and French paleontologists.
Its jaw bones and serrated teeth strongly suggested that just like T-rex Dries Mertens Coupe du monde Maillot , it also fed on hard tissue such as bone and tendon.
These anatomical features led the researchers to believe that it is a Jurassic notosuchian, close to the South American baurusuchids and sebecids, that were highly specialized predators of terrestrial habits, but different from present-day crocodilians in having a deep skull and powerful erect limbs.
The full name of the predatory crocodyliform is called Razanandrongobe sakalavae, which means "giant lizard ancestor from Sakalava region."
Nicknamed Razana, the animal is believed to be the oldest and possibly the largest representative of a group of crocodile-like animals called Notosuchians.
"Like these and other gigantic crocs from the Cretaceous, 'Razana' could outcompete even theropod dinosaurs, at the top of the food chain" Koen Casteels Coupe du monde Maillot , Cristiano Dal Sasso, of the Natural History Museum of Milan, said in a statement.
"In actual fact, it contributes to filling in a gap in the group's evolution, which contains a long ghost lineage in the Jurassic," the paper wrote. "It documents a dramatic, somewhat unexpected, size increase in the early history of the group."
Erectile dysfunction (ED) sometimes referred to as impotence Simon Mignolet Coupe du monde Maillot , is the repeated inability of a man to get or keep an erection firm enough for sexual intercourse. The term impotence may also be used to describe other problems associated with men's sexual activity, such as decreased libido and problems with ejaculation or orgasm. ED is caused by a wide array of physical and psychological factors which affects men's health. Generally, ED is resulted due to damage to nerves, arteries, smooth muscles, and fibrous tissues. High blood pressure, diabetes, heart disease Kevin Mirallas Coupe du monde Maillot , kidney or liver disease, other vascular conditions, cigarette smoking, and excessive alcohol intake, are responsible for restricting sufficient blood-flow into the vessels of the penis, and thus resulting ED. Experts believe that ED affected men may experience psychological problems such as, low self-esteem, sexual failure anxiety Eden Hazard Coupe du monde Maillot , depression, stress, guilt, and relationship conflicts. Moreover, several common medications such as, blood pressure drugs, antihistamines, antidepressants Romelu Lukaku Coupe du monde Maillot , tranquilizers and appetite suppressants may bring ED as a side effect affecting men's sexual health. To some extent, more than 50% of men between the ages of 40 and 70 can experience ED. Men with ED should know that it is not just a part of the normal process of aging rather it is a medical condition. The good news is that there are medicines and treatment options available in the market to assist ED affected men. Oral Medication : Oral medications such as Cialis (tadalafil), a class of drugs called phosphodiesterase inhibitors, are the most common treatment for ED. Taken an hour before sexual intercourse, Cialis functions by enhancing the effects of nitric oxide, a chemical that relaxes smooth muscles in the penis during sexual stimulation, and allows increased blood flow into the penis thus making it erect. The effect of Cialis can last 24 to 36 hours, several times longer than other anti-ED drugs such as Youri Tielemans Coupe du monde Maillot , Viagra and Levitra. ED patients are advised to undergo a thorough physical examination and should refer their medical history to a doctor in order to diagnose the underlying cause of ED and to identify appropriate treatment. Cialis is not advisable to men who have suffered a heart attack within the last six months, low blood pressure, high blood pressure, severe liver disease, and retinitis pigmentosa. The most common side effects of Cialis are headache, indigestion, back pain, muscle aches Kevin De Bruyne Coupe du monde Maillot , flushing, and nasal congestion. In rare instances, men taking Cialis reported a sudden decrease or loss of vision. Apart from oral therapy, other treatment options for ED patients are also available that includes sex counseling or sex therapy, penile injection, intraurethral therapy, vacuum therapy and penile implant surgery. However, one should note that before resorting to any medication or other treatment for ED Axel Witsel Coupe du monde Maillot , some simple lifestyle changes may improve ED. Here are few tips that may help in changing your lifestyle:
MADRID, March 28 (Xinhua) -- Spain international goalkeeper Iker Casillas has hinted that he will soon draw the curtain down on his record breaking career.
The 34-year-old former Real Madrid goalkeeper, who now plays for Porto, made his 166th appearance for his country as Spain drew 0-0 away to Romania in a friendly on Sunday night.
That appearance saw him beat the record of Latvian player Vitalijs Astafjevs to become the European footballer with the most international appearances, but Casillas has hinted that his time defending his country's goal could soon come to an end.
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03.05.2018 11:18
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