LION
Characteristics
Weight
and Height
males: wt 416 lb (189 kg), ht 48 in (120 cm) females: wt 277 lb (126 kg), ht 44 in (110 cm)
Colour
Tawny with white underparts, occasionally with faint spots; black on tail, ear backs, and lips; Mane varies in color from blond to black. General Locations Sub-Saharan regions of Africa except for deserts and rainforest. Lions are generally found in habitats where medium-sized to large herbivores live. The lion is the most abundant predator in the savanna and plains ecosystems. The lion has been completely wiped out in North and South Africa where it used to be quite abundant.
The lion can be found in most of the
National Parks and Reserves in Africa.
Habitat
Most Savanna and plains habitats are suitable for lions, especially those with a large variety of other animals. In best conditions, habitats will carry around 1 lion per 3 sq. mi (12/100 sq. km). In low density areas however, there will be one 1 lion/50 to 100 sq. mi.
Some of the larger lions will take on
buffaloes and even bull giraffes. However, most lions will prey on rodents,
birds, turtles, lizards, fish and ostrich eggs.
Activity Lions are mostly nocturnal, but can also be considered diurnal. Lions will spend 20 hours out of 24 sleeping or resting as a way to conserve energy. Lions become quite active in the afternoon, but do not actually begin hunting until late in the evening and then hunt late in the night-- they will find a place to sleep several hours after daybreak.
Social
Systems
Prides of lions are generally composed of related females which all share a traditional home range. Typical home ranges vary in size from 8 to over 124 sq. mi (20-400 sq. km).
Typical prides contain around 13 lions,
large prides can contain as many as 40 lions, while some prides will have a
few as two members.
Male coalitions: In these groups it is
advantageous for a lion to be quite large and to have a spectacular mane.
These factors will improve his chance of holding territory. In areas were
lions are quite abundant, the chances of a single lion without any territory
mating are quite slim. Coalitions of over 4 lions are quite rare so in most
cases lions have no trouble finding females to mate with.
Reproduction
There are typically 3 cubs per litter and the gestation period is 14 to 15 weeks. Females will reproduce at 20 to 30-month intervals. Mating is year-round for lions, however the mating and birth peaks are synchronized within prides. Females mature by the age of 4 and males by the age of 5. |
Animal
Wednesday 12 September 2012
KING OF THE JUNGLE (LION)
Monday 10 September 2012
CHEETAH
THE WORLD'S
FASTEST LAND ANIMAL (cheetah)
CHEETAH
Order: Carnivore
Family: Felidae
Genus and Species: Acinonyx jubatus
Family: Felidae
Genus and Species: Acinonyx jubatus
PHYSICAL DESCRIPTION
Built more like greyhounds than typical cats, cheetahs are adapted for
brief but intense bursts of speed. They have wiry bodies and small heads. Their
coats are golden or yellowish, embellished with many small black spots, and
their tails are long with a few black bands and sometimes a white tip. Black
stripes run from their eyes down to the corners of their mouths.
SIZE
Cheetahs grow to between three and a half and four and a half feet
long, not including their 30-inch tails. They weigh between 75 and 145 pounds
and stand two to three feet tall at the shoulder. Males tend to be a bit more
robust and weigh about ten pounds more than females.
GEOGRAPHIC DISTRIBUTION
Cheetahs live in small, isolated populations mostly in sub-Saharan
Africa. They are very rare in southern Algeria and northern Niger, and range
from Senegal east to Somalia and south to northern South Africa. A few have
been reported from Iran. However, many of their strongholds are in eastern and
southern African parks.
HABITAT
Savannas, both open and more densely vegetated, give cheetahs the open
areas they need for quick stalks and chases. They are not found in forest areas
or wetlands.
REPRODUCTION
Cheetahs can breed at any time of year but tend to copulate in the dry
season, with cubs being born at the onset of the wet season. Females reach
breeding age by 21 or 22 months of age. Males live in small permanent groups
called coalitions, which are usually made up of brothers. Males are drawn to
females in heat, but only one male in a coalition usually mates with the
selected female. On average, three cubs are born about three months after
mating takes place. Until five or six weeks old, the cubs remain hidden; if she
needs to move, the mother carries them from place to place. After five or six weeks,
cubs follow their mothers and share her kills. Cheetah cubs wean at about three
months old.
LIFE SPAN
In zoos, cheetahs may live up to 17 years; in the wild, they may live
eight to ten years.
AFRICAN WILD DOG
|
The African wild dog, also called the hunting dog, is a vanishing species in East Africa. Field studies have shown that the wild dog is a highly intelligent and social animal. Like most predators, it plays an important role in eliminating sick and weak animals, thereby helping maintain a natural balance and ultimately improving prey species. The stereotype of the wild dog as a cruel butcher is slowly being replaced by a less harsh image.
Physical Characteristics
The African wild dog is long-legged, with massive jaws and very large, erect bat like ears. Although it resembles some domestic dogs, it differs in that it has four toes on each foot instead of five.
The Latin name for the African wild dog means “painted wolf,” which aptly describes the colorful coat of dark brown, black and yellow patches. Wild dogs have bushy tails with white tips that may serve as a flag to keep the pack in contact while hunting
Habitat
Wild dogs live mostly in arid zones and in the savanna. They also are found in woodland and montane habitats where their prey lives.
Behavior
Wild dogs live in packs of six to 20. If the pack numbers fall below six, hunting efficiency is eroded. The dogs have a peculiar rather playful ceremony that bonds them for a common purpose and initiates each hunt. They start circulating among the other pack members, vocalizing and touching until they get excited and are ready to hunt. They start the hunt in an organized, cooperative manner. When prey is targeted, some of the dogs run close to the animal, while others follow behind, taking over when the leader tired. They can run long distances, at speeds up to about 35 miles per hour.
Of the large carnivores, wild dogs are the most efficient hunters – targeted prey rarely escapes. They tear the flesh until the animal falls, consuming even if it is still alive. This behavior may prejudice people against them, although in reality it may be no worse than the prolonged kills of other carnivores. Apart from its undeniable bloodiness, the remarkable aspect of the their hunting is the complete lack of aggression toward each other. Wild dogs have a social hierarchy but unlike many other social animals, there is little obvious intimidation. They have elaborate greeting rituals, accompanied by twittering and whining. Their large range of vocalizations includes a short bark of alarm, a rallying howl and a bell-like contact call that can be heard over long distances.
Diet
They usually hunt in the early morning and again in late evening, prettying on gazelles and other antelopes, warthogs, wildebeests calves and rat and birds. They may raid domestic stock, but as wild dogs seldom stay in one place for long, this damage is not extensive
Caring for the Young
A nuclear pack of about six dogs usually consists of one dominant breeding pair and several non-breeding adult male helpers. Occasionally another female in the pack forms a subordinate breeding pair with one of the other males. A breeding female gives birth about once a year, with litters averaging about 10 pups, thought as many as 19 have been recorded. They pups are born in a shelter of thick bush or grass, or in a hole. Usually twice as many males are born. Unlike many other species, the female offspring leave the natal group when they reach maturity, not the males.
The hunting members of the pack return to the den where they regurgitate meat for the nursing female and pups. Although litters are very large, very few pups survive. Sometimes the dens are flooded, or the pups die from exposure or disease. When pack numbers are reduced, hunting is not as efficient and adults may not bring back sufficient food for the pups. The entire pack is involved in the welfare of the pups; both males and females babysit the young and provide food for them.
Predators
Throughout Africa wild dogs have been shot and poisoned by farmers, hunters and, at one time, by rangers who considered them as bloodthirsty raiders of live stocks and dispersers of wild herds. As the numbers of these wild dogs dwindle, they become more mysterious, elusive and enigmatic, reappearing suddenly in places they have not inhabited for months and then vanishing again a few days later. Even though protected in parks and reserves, wild dog populations have declined to the point that packs may no longer be viable. In some areas they are close to extinction.
LEOPARD
LEOPARD
Physical Characteristics
The most secretive and
elusive of the large carnivores, the leopard is also the shrewdest. Pound for
pound, it is the strongest climber of the large cats and capable of killing
prey larger than itself.
Leopards come in a wide
variety of coat colors, from a light buff or tawny in warmer, drier areas to a
dark shade in deep forests. The spots, or rosettes, are circular in East
African leopards but square in southern African leopards.
Habitat
Dense bush in rocky
surroundings and forest rivers are their favorite habitats, but leopards adapt
to many places in both warm and cold climates. Their adaptability, in fact, has
helped them survive the loss of habitat to increasing human settlement.
Leopards are primarily nocturnal, usually resting during the daytime in trees
or thick bush. The spotted coat provides almost perfect camouflage.
Behavior
Leopards are solitary
creatures and predominately nocturnal. Each individual has a home range that
overlaps with its neighbors; the male's range is much larger and generally
overlaps with those of several females. Leopards continually move about their
territory, seldom staying in an area for more than two or three days at a time.
Ranges are marked with urine and claw marks and leopards announce their
presence to other leopards with a rasping cough. Leopards also growl, roar and
purr.
A litter includes two or
three cubs, whose coats appear to be smoky gray as the rosettes are not yet
clearly delineated. The female abandons her nomadic wandering until the cubs
are large enough to accompany her. She keeps them hidden for about the first 8
weeks, giving them meat when they are 6 or 7 weeks old and suckling them for 3
months or longer.
Diet
The most elusive of the
large carnivores, the leopard is a cunning, stealthy hunter, its prey ranges
from strong-scented carrion, fish, reptiles and birds to mammals such as
rodents, hares, hyraxes, warthogs, antelopes, monkeys and baboons. Both lions
and hyenas have been known to take away a leopard's kill. To prevent this,
leopards store their larger kills in trees where they can feed on them in
relative safety.
Predators and Threats
The most
widespread of the felines, leopards occur in regions across both Africa and
Asia. Indeed, their adaptability to both warm and cold climates has helped them
survive the loss of habitat caused by increasing human settlement. However,
leopards have long been preyed upon by man. Their soft, beautiful fur has been
used for clothing. The tail, claws and whiskers of the leopard are popular as
fetishes. In some areas, farmers try to exterminate them, while in others,
leopards are considered symbols of wisdom.
Tuesday 14 August 2012
Top 10 most dangerous snake in the world
What is snake?Snake is an reptiles. It can life in land
and water. Usually, snake liked to eat rats but snake also eat their same
species. Otherwise, snake also eat deer, human and rabbits. Snake need to kill to eat for life
either use their own venom or strength that have in their body. There are 10
venomous snake in the world. Beware with this snake because it can caused
death.
10. Rattlesnake
The only snake from the Americas on the list, the
Rattlesnake is easily identifiable by the tell tale rattle on the end of its
tail. They are actually a part of the Pit Viper family, and are capable of
striking at up to 2/3rd their body length. The Eastern Diamondback in
considered the most venomous species in North America. Surprisingly, juveniles
are considered more dangerous than adults, due to their inability to control
the amount of venom injected. Most species of rattlesnakes have hemotoxic
venom, destroying tissue, degenerating organs and causing coagulopathy
(disrupted blood clotting). Some degree of permanent scarring is very likely in
the event of a venomous bite, even with prompt, effective treatment, and can
lead to the loss of a limb or death. Difficulty breathing, paralysis, drooling
and massive hemorrhaging are also common symptoms. Thus, a rattlesnake bite is
always a potentially fatal injury. Untreated rattlesnake bites, especially from
larger species, are very often fatal. However, antivenin, when applied in time,
reduces the death rate to less than 4%
9. Death Adder
The appropriately named Death Adder is found in Australia
and New Guinea. They actually hunt and kill other snakes, including some on
this list, usually via ambush. Death Adders look quite similar to vipers, in
that they have triangular shaped heads and short, squat bodies. They typically
inject around 40-100mg of venom with an LD of 0.4mg-0.5mg/kg. An untreated
Death Adder bite is one of the most dangerous in the world. The venom is a
neurotoxin. A bite causes paralysis and can cause death within 6 hours, due to
respiratory failure. Symptoms generally peak within 24-48 hours. Antivenin is
very successful in treating a bite from a Death Adder, particularly due to the
relatively slow progression of symptoms, but before its development, a Death
Adder bite had a fatality rate of 50%. With the quickest strike in the world, a
Death Adder can go from strike position to striking and back again within 0.13
of a second.
8. Vipers
Vipers are found throughout most of the world, but arguably
the most venomous is the Saw Scaled Viper and the Chain Viper, found primarily
in the Middle East and Central Asia, particularly India, China and South East
Asia. Vipers are quick tempered and generally nocturnal, often active after
rains. They are also very fast. Most of these species have venom that cause
symptoms that begin with pain at the site of the bite, immediately followed by
swelling of the affected extremity. Bleeding is a common symptom, especially
from the gums. There is a drop in blood pressure and the heart rate falls. Blistering
occurs at the site of the bite, developing along the affected limb in severe
cases. Necrosis is usually superficial and limited to the muscles near the
bite, but may be severe in extreme cases. Vomiting and facial swelling occurs
in about one-third of all cases. Severe pain may last for 2-4 weeks. Often,
local swelling peaks within 48-72 hours, involving the affected limb.
Discoloration may occur throughout the swollen area as red blood cells and
plasma leak into muscle tissue. Death from septicaemia, respiratory or cardiac
failure may occur 1 to 14 days post-bite, or even later.
7. Philippine Cobra
Most species of Cobra would not make this list; however the
Philippine Cobra is the exception. Drop for drop, its venom is the most deadly
of all the Cobra species, and they are capable of spitting it up to 3 metres.
The venom is a neurotoxin which affects cardiac and respiratory function, and
can cause neurotoxicity, respiratory paralysis and death in thirty minutes. The
bite causes only minimal tissue damage. The neurotoxins interrupt the
transmission of nerve signals by binding to the neuro-muscular junctions near
the muscles. The symptoms might include headache, nausea, vomiting, abdominal
pain, diarrhea, dizziness, collapse and convulsions.
6. Tiger Snake
Found in Australia, the Tiger snake has a very potent
neurotoxic venom. Death from a bite can occur within 30 minutes, but usually
takes 6-24 hours. Prior to the development of antivenin, the fatality rate from
Tiger snakes was 60-70%. Symptoms can include localized pain in the foot and
neck region, tingling, numbness and sweating, followed by a fairly rapid onset
of breathing difficulties and paralysis. The Tiger snake will generally flee if
encountered, but can become aggressive when cornered. It strikes with unerring
accuracy.
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.
Subscribe to:
Posts (Atom)