Sunday 3 March 2013

Ten(10) Animals that are extinct

These are some animals that have  gone extinct.   

Mankind has the honor of quite possibly being the most destructive force to ever hit mother nature. This list looks at some of the more recent, probably lesser known extinctions that humans have lent a helping hand to. Whether by over hunting or over population, driving a species to extinction is nothing to be proud of and it’s certainly not slowing down.

10. Thylacine


Commonly known as the Tasmanian Tiger, the Thylacine was the largest known carnivorous marsupial of modern times. Virtually wiped out in the wild due to constant hunting (they were thought to be a threat to sheep and other small farm animals) and the encroachment of humans on their already limited habitat the Thylacine was finally recognized as being in danger of becoming extinct in 1936, too little, too late as that same year the last Thylacine, named Benjamin, died on 7 September as the result of neglect — locked out of its sheltered sleeping quarters and exposed to freezing temperatures at night in Hobart Zoo, Tasmania. 60 years on there are still claims of sightings but all are yet to be confirmed.

9.Quagga 


The Quagga was a southern subspecies of the Plains Zebra. It differed from other zebras mainly in having stripes on the head, neck, and front portion of its body only, and having brownish, rather than white, on its upper parts. The last free Quaggas may have been caught in 1870. The last captive Quagga, a mare, died on 12 August 1883 in Amsterdam Zoo, where she had lived since 9 May 1867. It was not realized that this Quagga mare was the very last of her kind. Because of the confusion caused by the indiscriminate use of the term “Quagga” for any zebra, the true Quagga was hunted to extinction without this being realized until many years later. The Quagga became extinct because it was ruthlessly hunted down for meat and leather by South African farmers, also they were seen by the settlers as competitors, like other wild grass eating animals, for their livestock, mainly sheep and goats.

8. Passenger Pigeon


The story of the Passenger Pigeon is one of the most tragic extinction stories in modern times. As recently as around 200 years ago they weren’t anywhere near extinction. In fact, they were actually the most common bird in North America, and some reports counted single flocks numbering in the billions. Pigeon meat was commercialized and recognized as cheap food, especially for slaves and the poor, which led to a hunting campaign on a massive scale. Furthermore, due to the large size of their flocks, the birds were seen as a threat to farmers. The last Passenger Pigeon, named Martha, died alone at the Cincinnati Zoo at about 1:00 pm on September 1, 1914.

7.Golden Toad

The first record of the Golden Toad was by herpetologist Jay Savage in 1966. The toad, recognized by its brilliant golden orange color, was native to the tropical cloud forests which surround Monteverde, Costa Rica. None have been seen since 1989. It last bred in normal numbers in 1987, and its breeding sites were well known. In 1987, due to erratic weather, the pools dried up before the larva had matured. Out of potential 30,000 toads, only 29 had survived. In 1988, only eight males and two females could be located. In 1989, a single male was found, this was the last record of the species. Extensive searches since this time have failed to produce any more records of the golden toad.

6.Caribbean Monk Seal



The Caribbean Monk Seal was the only known seal which was native to the Caribbean Sea and the Gulf of Mexico. It is also the only species of seal to go extinct directly due to human causes. The Caribbean monk seal was the first New World mammal to be discovered by Columbus and his company on the coast of Santo Domingo in 1494. It appears in the account of Columbus’ second voyage to America. Columbus promptly ordered his crew to kill eight of the animals, which he called “sea-wolves”, for food, paving the way for exploitation of the species by European immigrants who came in his wake. Since then, the once abundant seals have been hunted for their oil and slaughtered by fishermen, who regarded the animals as competitors. It was officially declared extinct just last year, on June 6th, 2008, although the last recorded account of the species was made at Serranilla Bank between Honduras and Jamaica in 1952. Like other true seals, the Caribbean Monk Seal was sluggish on land. This, along with its lack of fear for man, unaggressive and curious behavior, as well as human hunting, and early habitat exclusion by humans throughout their range may have dramatically speed up their decline and likely contributed to its demise.

want to know about more animals that  have gone extinct?  well then, come back next time and learn more!!

Saturday 2 March 2013

Mind Blowing facts about animals!!

Here are some interesting facts about animals that you would enjoy!!
DID YOU KNOW?

1.Did you know that Elephants are actually afraid of mice and it's not just a myth?





2. Did you know that an Ostrich's eye is bigger than it brain?


3. Did you know that an Octopus is so flexible, that it can slither through openings not much bigger than their eyeballs?


4. Did you know that  a Vampire Bat can drink a victims blood for 30minutes without waking them up??


5. Did you know that an Anteater is nearly 6ft long.However, its mouth is only an inch wide and it has 42 teeth. 


Enjoyed this edition of "MIND BLOWING FACTS ABOUT ANIMALS?"... Well then, be sure to be back on Monday for a next edition!!!


Friday 1 March 2013

The countdown continues of the top(10) most venomous snakes in the world!!!

Here is the moment you have been wait for!! The countdown of the  remaining five(5),in the most venomous snakes in the world!!

5. Black Mamba

The feared Black Mamba is found throughout many parts of the African continent. They are known to be highly aggressive, and strike with deadly precision. They are also the fastest land snake in the world, capable of reaching speeds of up to 20km/h. These fearsome snakes can strike up to 12 times in a row. A single bite is capable of killing anywhere from 10-25 adults. The venom is a fast acting neurotoxin. Its bite delivers about 100–120 mg of venom, on average; however, it can deliver up to 400 mg. If the venom reaches a vein, 0.25 mg/kg is sufficient to kill a human in 50% of cases. The initial symptom of the bite is local pain in the bite area, although not as severe as snakes with hemotoxins. The victim then experiences a tingling sensation in the mouth and extremities, double vision, tunnel vision, severe confusion, fever, excessive salivation (including foaming of the mouth and nose) and pronounced ataxia (lack of muscle control). If the victim does not receive medical attention, symptoms rapidly progress to severe abdominal pain, nausea and vomiting, pallor, shock, nephrotoxicity, cardio toxicity and paralysis. Eventually, the victim experiences convulsions, respiratory arrest, coma and then death. Without antivenin, the mortality rate is nearly 100%, among the highest of all venomous snakes. Depending on the nature of the bite, death can result at any time between 15 minutes and 3 hours.

4.Taipan

















Another entry from Australia, the venom in a Taipan is strong enough to kill up to 12,000 guinea pigs. The venom clots the victim’s blood, blocking arteries or veins. It is also highly neurotoxic. Before the advent of an antivenin, there are no known survivors of a Taipan bite, and death typically occurs within an hour. Even with successful administration of antivenin, most victims will have an extensive stay in intensive care. It has been likened to the African Black Mamba in morphology, ecology and behavior.

3.Blue Krait


The Malayan or Blue Krait is, by far, the most deadly of this species. Found throughout South East Asia and Indonesia, 50% of bites from the deadly Blue Krait are fatal, even with the administration of antivenin. Kraits hunt and kill other snakes, even cannibalizing other Kraits. They are a nocturnal breed, and are more aggressive under the cover of darkness. However, overall they are quite timid and will often attempt to hide rather than fight. The venom is a neurotoxin, 16 times more potent than that of a Cobra. It quickly induces muscle paralysis by preventing the ability of nerve endings to properly release the chemical that sends the message to the next nerve. This is followed by a period of massive over excitation (cramps, tremors, spasms), which finally tails off to paralysis. Fortunately, bites from Kraits are rare due to their nocturnal nature. Before the development of antivenin, the fatality rate was a whopping 85%. Even if antivenin is administered in time, you are far from assured survival. Death usually occurs within 6-12 hours of a Krait bite. Even if patients make it to a hospital, permanent coma and even brain death from hypoxia may occur, given potentially long transport times to get medical care


2.Eastern Brown Snake



Don’t let the innocuous name of this snake fool you, 1/14,000 of an ounce of its venom is enough to kill an adult human. Coming in a variety of species, the Eastern Brown snake is the most venomous. Unfortunately, its preferred habitat is also along the major population centers of Australia. The Brown snake is fast moving, can be aggressive under certain circumstances and has been known to chase aggressors and repeatedly strike at them. Even juveniles can kill a human. The venom contains both neurotoxins and blood coagulants. Fortunately for humans, less than half of bites contain venom and they prefer not to bite if at all possible. They react only to movement, so stand very still if you ever encounter one in the wild.


1.Fierce Snake or Inland Taipan




While I did say that I would not include multiple sub-species in this list, the incredible Inland Taipan deserves a spot of its own. It has the most toxic venom of any land snake in the world. The maximum yield recorded for one bite is 110mg, enough to kill about 100 humans, or 250,000 mice! With an LD/50 of 0.03mg/kg, it is 10 times as venomous as the Mojave Rattlesnake, and 50 times more than the common Cobra. Fortunately, the Inland Taipan is not particularly aggressive and is rarely encountered by humans in the wild. No fatalities have ever been recorded, though it could potentially kill an adult human within 45 minutes.