Cheetah

Social behavior:-
Unlike other animals which have gender specific names - 'bull' and 'cow' for elephants; 'rooster' and 'hen' for chickens - humans apply the name 'cheetah' to both sexes. Cheetah in the wild may be divided into 2 groups: the family group/females and males.


Females/Family Group:-
Young females usually occupy the same range as their mother although ALL females are solitary except when they have a litter. Average female home ranges extend to 833 square kilometers (322 square miles). A female raises her cubs alone since adult male and female cheetahs mix only to mate. The average life span of wild radio-collared female cheetahs is 6.9 years which compares to 11.7 years for females in captivity.


Males:-
Only rarely will a male cheetah live alone. Generally 2 or 3 cheetah males, often brothers, will form a coalition. This small group will live and hunt together for life and usually claims a large area or range which may overlap several female territories. The average size of male territories is 37.4 square kilometers (14.4 square miles).  Young males seek out an area at a great distance from their parent; sometimes as far as 482 kilometers (300 miles).


Food & Hunting:-

A cheetah is carnivorous and eats a variety of small animals. While most cats are nocturnal predators, the cheetah is primarily diurnal, hunting in early morning and late afternoon. Since it depends on sight rather than smell, it likes to scan the countryside from a tree limb or the top of a termite mound. Other big cats chase only a few hundred meters: the cheetah chases 3.4 miles (5500 meters) at an average speed of 45 miles per hour (72 kilometers per hour). Stalking is as important as the fast sprint: usually it will creep within 50 yards (46 meters) of an intended victim before the final acceleration. Full sprints last about 20 seconds and almost never exceed 1 full minute. If it succeeds in catching an animal the cheetah will suffocate it by clamping the animal's windpipe, sometimes holding a clamp as long as 5 minutes. Very small animals like hares are killed by a simple bite through the skull. But whatever the meal - large or small -  cheetah eats quickly for if challenged it will most often lose. Cheetahs have unusually clean eating habits: they do not return to their kill nor do they eat carrion; they leave the skin, bones and entrails of their prey. At 6 weeks the young are strong enough to follow the hunt and when they are about 6 months old the mother will capture live prey for them to practice killing.

Habitat:-

Not so long ago cheetahs inhabited an area from North Africa to India, but they are now commonly found only in sub-Saharan Africa (south of the Sahara Desert). Their range includes sparse sub-desert, steppe (a treeless plain), medium and long-grass plains. They need an environment with bushes, tall grass and other large plants in order to hide from predators.

Snow Puma

Type:Mammal

Diet:Carnivore

Size:Head and body, 3.25 to 5.25 ft (1 to 1.6 m); Tail, 23.5 to 33.5 in (60 to 85 cm)

Weight:136 lbs (62 kg)

Protection status:Endangered

Size relative to a 6-ft (2-m) man

This powerful predator roams the Americas, where it is also known as a puma, cougar, and catamount. This big cat of many names is also found in many habitats, from Florida swamps to Canadian forests.

Mountain lions like to prey on deer, though they also eat smaller animals such as coyotes, porcupines, and raccoons. They usually hunt at night or during the gloaming hours of dawn and dusk. These cats employ a blend of stealth and power, stalking their prey until an opportunity arrives to pounce, then going for the back of the neck with a fatal bite. They will hide large carcasses and feed on them for several days.

Mountain lions once roamed nearly all of the United States. They were prized by hunters and despised by farmers and ranchers who suffered livestock losses at their hands. Subsequently, by the dawn of the 20th century, mountain lions were eliminated from nearly all of their range in the Midwest and Eastern U.S.—though the endangered Florida panther survives.

Snow Owl

This yellow-eyed, black billed white bird is easily recognizable. It is 52–71 centimetres (20–28 in) long with a 125–150 centimetres (49–59 in) wingspan. Also, these birds can weigh anywhere from 1.6–3 kilograms (3.5–6.6 lb).It is one of the largest species of owl and in North America is on average the heaviest owl species. The adult male is virtually pure white, but females and young birds have some dark scalloping; the young are heavily barred, and dark spotting may even predominate. Its thick plumage, heavily-feathered taloned feet, and coloration render the Snowy Owl well-adapted for life north of the Arctic Circle.

Snowy Owl calls are varied, but the alarm call is a barking, almost quacking krek-krek; the female also has a softer mewling pyee-pyee or prek-prek. The song is a deep repeated gawh. They may also clap their beak in response to threats or annoyances. While called clapping, it is believed this sound may actually be a clicking of the tongue, not the beak.

Ecology:-

The Snowy Owl is typically found in the northern circumpolar region, where it makes its summer home north of latitude 60 degrees north. However, it is a particularly nomadic bird, and because population fluctuations in its prey species can force it to relocate, it has been known to breed at more southerly latitudes. During the last glacial, there was a Central European paleosubspecies of this bird, Bubo scandiacus gallicus, but no modern subspecies are recognized.

This species of owl nests on the ground, building a scrape on top of a mound or boulder. A site with good visibility, ready access to hunting areas, and a lack of snow is chosen. Gravel bars and abandoned eagle nests may be used. Breeding occurs in May, and depending on the amount of prey available, clutch sizes range from 5 to 14 eggs, which are laid singly, approximately every other day over the course of several days. Hatching takes place approximately five weeks after laying, and the pure white young are cared for by both parents. Both the male and the female defend the nest and their young from predators. Some individuals stay on the breeding grounds while others migrate.

Range:-

Snowy Owls nest in the Arctic tundra of the northermost stretches of Alaska, Canada and Eurasia. They winter south through Canada and northern Eurasia, with irruptions occurring further south in some years. Snowy Owls are attracted to open areas like coastal dunes and prairies that appear somewhat similar to tundra. They have been reported as far south as Texas, Georgia, the American Gulf states, southernRussia, northern China and even the Caribbean. Between 1967 and 1975, Snowy Owls bred on the remote island of Fetlar in the Shetland Isles north of Scotland, UK. Females summered as recently as 1993, but their status in the British Isles is now that of a rare winter visitor toShetland, the Outer Hebrides and the Cairngorms.In January 2009, a Snowy Owl appeared in Spring Hill, Tennessee, the first reported sighting in the state since 1987.

Hunting and Diet:-

This powerful bird relies primarily on lemmings and other small rodents for food during the breeding season, but at times of low prey density, or during the ptarmigan nesting period, they may switch to juvenile ptarmigan. They are opportunistic hunters and prey species may vary considerably, especially in winter. They feed on a wide variety of small mammals such as meadow voles anddeer mice, but will take advantage of larger prey, frequently following traplines to find food. Some of the larger mammal prey includes hares, muskrats, marmots, squirrels, rabbits, raccoons, prairie dogs, rats, moles, and entrapped furbearers. Birds preyed upon include ptarmigan, ducks, geese,shorebirds, ring-necked pheasants, grouse, American coots, grebes, gulls, songbirds, and even other raptors, including other owl species. Snowy Owls are also known to eat fish and carrion. Most of the owls' hunting is done in the "sit and wait" style; prey may be captured on the ground, in the air or fish may be snatched off the surface of bodies of water using their sharp talons. Each bird must capture roughly 7 to 12 mice per day to meet its food requirement and can eat more than 1,600 lemmings per year.

SNOW FOX

The arctic fox lives in some of the most frigid extremes on the planet. Among its adaptations for cold survival are its deep, thick fur, a system of countercurrent heat exchange in the circulation of paws to retain core temperature, and a good supply of body fat. The fox has a low surface area to volume ratio, as evidenced by its generally rounded body shape, short muzzle and legs, and short, thick ears. Since less of its surface area is exposed to the arctic cold, less heat escapes the body. Its furry paws allow it to walk on ice in search of food. The arctic fox has such keen hearing that it can precisely locate the position of prey under the snow. When it finds prey, it pounces and punches through the snow to catch its victim. Its fur changes colour with the seasons: in the winter it is white to blend in with snow, while in the summer months it changes to brown.


Reproduction:-
The arctic fox tends to be active from early September to early May. The gestation period is 53 days. Litters tend to average 5-8 kits but may be as many as 25. Both the mother and the father help to raise their young. The females leave the family and form their own groups and the males stay with the family.Foxes tend to form monogamous pairs in the breeding season. Litters are born in the early summer and the parents raise the young in a large den. Dens can be complex underground networks, housing many generations of foxes. Young from a previous year's litter may stay with the parents to help rear younger siblings.The kits are initially brownish; as they become older they turn white. Their coat of fur also changes color when summer arrives but in winter it is white.

Diet:-

The arctic fox will generally eat any small animal it can find: lemmings, hares, owls, eggs, and carrion, etc. Lemmings are the most common prey. A family of foxes can eat dozens of lemmings each day. During April and May the arctic fox also preys on ringed seal pups when the young animals are confined to a snow den and are relatively helpless. Fish beneath the ice are also part of its diet. If there is an overabundance of food hunted, the arctic fox will bury what the family cannot eat. When its normal prey is scarce, the arctic fox scavenges the leftovers and even feces of larger predators, such as the polar bear, even though the bear's prey includes the arctic fox itself.

Size:-

The average length is 85.3 cm (33.6 in), with a range of 83 to 110 cm (33 to 43 in), in the male and 82.1 cm (32.3 in), with a range of 71.3 to 85 cm (28.1 to 33 in), in the female. The tail is 31 cm (12.2 in) long in the male and 30 cm (11.8 in) long in the female. It is 25–30 cm (9.8–11.8 in) high at the shoulder.On average males weigh 3.5 kg (7.7 lb), with a range of 3.2 to 9.4 kg (7.1 to 21 lb), while females average 2.9 kg (6.4 lb), with a range of 1.4 to 3.2 kg (3.1 to 7.1 lb).

White Ermine

Geographic Range


Ermine have a circumpolar distribution. They are found in the north temperate regions of Eurasia and North America. In the New World, they range from east to west in a broad belt from the Arctic Ocean and adjacent islands of the Canadian Archipelago southward into the northern United States. Ermine are absent from the Great Plains. 


Habitat
Ermine prefer riparian woodlands, marshes, shrubby fencerows, and open areas adjacent to forests or shrub borders. Although ermine are primarily terrestrial, they climb trees and swim well. Tree roots, hollow logs, stone walls, and rodent burrows are used as dens. Dens are usually around 300mm below ground. Ermine line their nests with dry vegetation, and fur and feathers from prey. Side cavities of burrows are used as food caches and latrines. (Ruff and Wilson, 1999)


Physical Description
Mass: 25 to 116 g (0.88 to 4.08 oz)
Length: 170 to 330 mm (6.69 to 12.99 in)
At full adult size total body length from head to rump is 170mm to 330mm. Males are generally twice as large as females, with males weighing from 67 to 116 grams and females from 25 to 80 grams. The tail length is about 35% of the total body length, ranging from 42mm to 120mm. Ermine have the typical weasel form: long body, short legs, long neck supporting a triangular head, slightly protruding round ears, bright black eyes, and long whiskers. Their short, moderately fine fur is white in the winter and the tip of the tail is black. In the summer, the dorsal fur is chocolate brown while the ventral fur extending to the upper lip is yellowish white.


Reproduction
Breeding interval: Ermine generally breed once yearly.
Breeding season: Ermine mate in late spring to early summer.
Number of offspring: 3 to 18; avg. 4-9
Gestation period: 280 days (average)
Time to weaning: 8-10 weeks (average)
Age at sexual or reproductive maturity (female): 60-70 days (average)
Age at sexual or reproductive maturity (male): 2 years (average)
Ermine are a polygynous-promiscuous species, with males and females mating opportunistically.
Ermine mate in late spring to early summer. Females are polyestrous, but produce only 1 litter per year. Young are born in April or May after an average gestation period of 280 days, which includes an 8-9 month period of developmental delay. Longer days beginning in March trigger the resumption of fetal development. Litter size ranges from 3-18 offspring and averages 4-9. The sex ratio is unequal. Young are blind and helpless. They are covered with fine white hair, and a prominent dark mane of dense fur develops around the neck by the third week (function unknown). The young grow quickly and are able to hunt with their mother by their eighth week. Although females do not reach adult size until a least 6 weeks after birth, they are able to mate when they are 60-70 days old, often before they are weaned. Males do not breed or gain adult dimensions until their second summer.
Females exclusively care for their offspring, nursing and protecting them until they become independent. The young are born blind and helpless.Females in nature may survive for at least 2 breeding seasons, while males generally do not survive this long. Reproductive success is highly dependent on food availability.

Lifespan/Longevity
Longest known lifespan in wild
7 years (high)
Expected lifespan in wild
1-2 years (average)

Behavior
The ermine's lithe, agile body allows it to move swiftly both above ground and through underground burrows. Females hunt in tunnels more than males, which may explain the higher number of males that are trapped. Ermine can also run easily across snow. This ideal predator hunts in a zigzag pattern, progressing by a series of leaps of up to 50 cm each. Ermine investigate every hole and crevice, often stopping to survey their surroundings by raising their heads and standing upright on their hindlegs. They may travel up to 15 km in one night.
Adult males dominate females and young. Females tend to remain in their birth place throughout their lives. Males disperse and attain large territories that usually encompass or overlap females' territories.
Male and female ermine only associate with one another during the breeding season.

Home Range
Ermine population densities fluctuate with prey abundance. When conditions are good, an individual may occupy a 10ha area. The maximum home range size is about 20ha. Home ranges of males are usually twice the size of female home ranges. These solitary mammals maintain exclusive boundaries that are patrolled and marked by scent. (Ruff and Wilson, 1999)

Communication and Perception
Ermine have keen senses of smell, vision, hearing, and touch that help them to locate prey. Most mustelids are fairly quiet animals, but some vocalizations may be used in intra-specific communication. Chemical cues are probably the main means of communication reproductive readiness to potential mates.

Food Habits
Ermine are carnivores that hunt primarily at night. They are specialist predators on small, warm-blooded vertebrates, preferably mammals of rabbit size and smaller. When mammalian prey is scarce, ermine eat birds, eggs, frogs, fish, and insects. In severe climates, ermine frequently hunt under snow and survive entirely on small rodents and lemmings. Daily meals are essential to meet the ermine's exhorbitant energy and heat production demands. Ermine cache leftover meals as a way of dealing with these demands. (Ruff and Wilson, 1999)
Once a potential prey is identified, the ermine approaches as closely as possible. With incredible speed it grasps the back of the victim's head and neck with sharp teeth, and wraps its body and feet around the victim. The victim dies from repeated bites to the base of the skull. Ermine have keen senses that help them locate prey. Hares and rodents are mainly followed by scent, insects by sound, and fish by sight. (Ruff and Wilson, 1999)

Predation
Ermine are fierce and agressive, although diminutive, animals. Potential predators are larger carnivores including red fox, gray fox, martens, fishers, badgers, raptors, and occassionally domestic cats. 

Wolves

Type:Mammal

Diet:Carnivore

Average life span in the wild:6 to 8 years

Size:Head and body, 36 to 63 in (91 to 160 cm); Tail, 13 to 20 in (33 to 51 cm)

Weight:40 to 175 lbs (18 to 79 kg)

Group name:Pack

Protection status:Endangered

Size relative to a 6-ft (2-m) man

here are lots of different types of wolves. There are artic wolves, gray wolves, red wolves, Mexican wolves, Persian wolves, Indian wolves and Chinese wolves. On our website, we talk about the timber wolf, also known as the gray wolf. Gray wolves live in the Artic, Yellowstone National Park, Wyoming, Minnesota, Idaho, Montana and Europe.Wolves are carnivores that live in the more wild parts of the world. They are great and majestic animals. They have been around for centuries and centuries. Wolves are very intelligent. They have a keen sense of smell and hearing. They know how to hunt together, bring down large prey, play to sharpen their hunting strategies, establish their own hierarchy, and many other things. Wolves are the great ancestors of the very animals many of you have at home, dogs. Dogs and wolves genetically diverged 135,00 years ago. Some dogs look like wolves, and some look nothing like them!

Wolves function as social predators and hunt in packs organised according to a strict social hierarchy and led by an alpha male and alpha female. This social structure allows the wolf to take prey many times its size. The size of the pack changes during the year and is controlled by factors such as mortality and food supply. Generally it's between 2 and 12, even if packs with more than 30 has been recorded. The hierarchy of the pack is strict, with the alpha on top and the omega at the bottom. The hierarchy controls all activity in the pack, from which wolf eats first to who is allowed to breed (generally only the alpha pair). Between the extremes of the alpha and the omega there is generally a beta pair, contesters for the alpha position that will take it if any of the alpha wolves are killed. Also, depending on the season there might be a number of pups and yearlings.

New packs are formed when a wolf leaves its birth pack and claims a territory. Wolves searching for other wolves to form packs with or suitable territories can travel very long distances. Packs frequently break apart when the alpha pair is killed.

Hunting:-

The wolf is somewhat opportunistic and will eat what it comes across as long as it is reasonably fresh. Packs of wolves hunt any large herbivore in their range, while lone wolves are more prone to take eat anything the come across, including rodents. The hunting methods ranges from surprise attacks on smaller animals such as rabbits and rodents to long lasting chases. Wolves can chase large prey for several hours before giving up, but the success rate is rather low.