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The skunk

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The skunk is a mammal known for its ability to spray a liquid that has a strong nasty odor.  There are several species of skunk and they vary in appearance from black and white to brown or cream colored.

Skunks vary is size from about 15.6 to 37 in (40 to 94 cm) long and weigh from 1.1 lb (0.50 kg) to 18 lbs (8.2 kg).  They  have moderately elongated bodies with relatively short, well-muscled legs and long front claws they use to dig.

Commonly, skunks come in black and white, but there are also some that are brown or grey and a few come in cream.  They all have a stripe across their back and tail, two thinner stripes, or a series of white spots and broken stripes.  Some are even striped on their legs.

The skunk is omnivorous, eating both plant and animal material and changing its diet as the seasons change.  It eats insects and larvae, earthworms, grubs, small rodents, lizards, salamanders, frogs, snakes, birds, moles and eggs.  It also eats berries, roots, leaves, grasses, fungi and nuts.  In settled areas, it eats garbage left by humans.  Less often, skunks may be found acting as scavengers, eating bird and rodent carcasses left by cats or other animals.  Pet owners, particularly those of cats, may experience a skunk finding its way into a garage or basement where pet food is kept.  Skunks will dig holes in lawns in search of grubs and worms.  The skunk is the primary predators of the honeybee, relying on its thick fur to protect itself from stings.  The skunk scratches at the front of the beehive and eats the guard bees that come out to investigate.  Mother skunks are known to teach this behavior to their young.

Skunks come out when the sun goes down and are solitary animals when they are not breeding.  However, in the most northern parts of their range, they may gather together in dens to keep warm.  During the day, they shelter in borrows which they can dig with their powerful front claws.  Males and females occupy overlapping home ranges through the greater part of the year, typically 2 to 4 km2 (0.77 to 1.54 sq. mi) for females and up to 20 km2 (7.7 sq. mi) for males.

Skunks are not really hibernators in the winter, but do den up for extended periods of time.  During that time, they remain mostly inactive and feed rarely, going through a dormant stage.  During the winter, in Canada and the USA, multiple females huddle together while males often den alone.  The dens are repeatedly used.

Although they have excellent senses of smell and hearing, they have poor vision, being unable to see objects more than 3 m (10 ft) away, making them vulnerable to death by road traffic.  Their lifespan in the wild reaches seven years, with most living only up to a year.  In captivity, they may live up to 10 years.

Skunks mate in early spring.  Males will mate with more than one female.  Before giving birth, usually in May, the female will excavate a den to house her litter of 4 to 7 kits.  The gestation period is about 66 days.  When born, the kits are blind, deaf and covered in a soft layer of fur.  Three weeks later, their eyes will open.  They are weaned about 2 months after birth, but will stay with their mother until they are ready to mate, at about one year of age.  Mom is protective of her kits, spraying at any sign of danger.  The male plays no part in raising the young.

Skunks are notorious for their anal scent glands, which they can use as a defensive weapon.  Skunks have two glands, one on each side of the anus.  These glands produce a mixture of sulfur-containing chemicals which have a highly offensive smell.  The odor of the fluid is strong enough to ward off bears and other potential attackers and can be difficult to remove from clothing.  Muscles located next to the scent glands allow them to spray with a high degree of accuracy, as far as 3 m (10 ft).  The smell aside, the spray can cause irritation and even temporary blindness, and is sufficiently powerful to be detected by a human nose up to a mile (1 1/2 km) down wind.

Skunks are reluctant to use this weapon, as they carry just enough of the chemical for 5 or 6 uses, about 15 cc, and require some ten days to produce another supply.  Their bold black and white coloration make their appearance memorable.  It is to a skunk’s advantage to warn possible predators off without expending their “precious” scent.  So they go through an elaborate routine of hisses, foot-stamping, and tail-high postures before resorting to spraying.  They usually don’t spray each other, except among males in the mating season.  If they have to fight over den-space, they do so with teeth and claws.

Most predators of the Americas, such as wolves, foxes and badgers, seldom attack skunks, out of fear of being sprayed.  The exceptions are dogs, reckless predators whose attacks fail once they are sprayed, and the great horned owl, which is the skunk’s only regular predator.

Skunks are common in suburban areas.  Frequent encounters with dogs and other domestic animals, and the release of the odor when a skunk is run over, have led to many myths about the removal of sunk odor.  Due to the chemical composition of the spray, most of the household remedies are ineffective.  One of the most commonly held beliefs is that a pet that has been sprayed should be bathed in tomato juice and is only marginally effective.  This would require an inordinate amount of tomato juice.  The Humane Society of the United States recommends using a mixture of hydrogen peroxide, baking soda and dishwashing liquid.

Healthy skunks rarely bite humans.  Although a domesticated skunk with its scent glands removed may bite to defend itself, it very seldom happens.  The most prevalent cause of skunks biting humans is the rabies virus.

My dog Chamonix has been sprayed several times by skunks over his 6 years of life, twice in California, and twice in Costa Rica (so far).  He never seems to learn his lesson and this causes a tremendous amount of work for me, trying to remove the odor from his coat, which seems to transfer to all my other dogs.  I have a total of 5 dogs, so try to imagine attempts to remove skunk spray odor from 5 dogs.  It’s hell!!!

The Jaguarundi

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The jaguarundi is found from southern Texas and coastal Mexico in the north, through Central and South America east of the Andes, and as far south as northern Argentina.  Its habitat is lowland brush areas close to a source of running water, and may include any habitat from dry thorn forest to wet grassland.  Although they typically live in lowlands, they have been found at elevations as high as 3,200 m (10,500 ft).  They also inhabit occasionally dense tropical areas.

Jaguarundis are been sighted in Florida, US.  It is not known when the species was introduced there.  It is said to have been the work of a writer who at some point imported the animals from their native habitat and released them near his hometown of Chiefland and in other locations across the state.

It has short legs, an elongated body and a long tail.  The ears are short and rounded.  They resemble a weasel.  The coat is without spots, uniform in color, with, at most a few faint markings on the face and underside.  The coat can be either blackish to brownish-grey (grey phase) or foxy red to chestnut (red phase) individuals of both phases can be born in the same litter.  It has a total length of 53 to 77 cm (21 to 30 in) with a 31-to 60 cm-long tail, and weighs 3.5 to 9.1 kg (7.7 to 20.1 lb).   The two color phases were once thought to represent two distinct species:  they grey one called jaguarundi and the red one called eyra.

They are primarily diurnal, being active during the day rather than evenings or night.  They are comfortable in trees, but prefer to hunt on the ground.  They will eat almost any small animal they can catch, typically a mixture of rodents, small reptiles, and ground-feeding birds.  They have also been observed to kill larger prey, such as rabbits and opossums; unusual prey include fish and even marmosets.  Like many other cats, they also include a small amount of vegetation and arthropods in their diets.

They seem to be more gregarious than other cats, tolerating the close presence of other members of their species.  But in the wild, they are generally encountered alone, suggesting a solitary lifestyle.  Their territories vary from 6.8 to 100 km square (2.6 to 38.6 sq. mi).  Like other cats, they scent mark their territory by scratching the ground or nearby branches, head-rubbing, urination, and leaving their feces uncovered.  They are shy and reclusive, and evidently very cautious of traps.

Jaguarundis have an unusually wide range of vocalizations, including purrs, whistles, yaps, chattering sounds, and even a bird-like chirp.

The timing of the breeding season among jaguarundis is unclear; they breed all year round.  Oestrus lasts 3 to 5 days, marked by the female regularly rolling onto her back and spraying urine.  After a gestation period of 70 to 75 days, the female gives birth to a litter of one to four kittens in a den constructed in a dense thicket, hollow tree, or similar cover.

The kittens are born with spots on their undersides, which disappear as they age.  The young are capable of taking solid food at about six weeks, although they begin to play with their mother’s food as early as 3 weeks.  They become sexually mature at about 2 years of age, and have lived for up to 10 years in captivity.

They are not particularly sought after for their fur, but are suffering decline due to loss of habitat.  They are also caught in traps intended for commercially valuable species.

They are closely related to the much larger and heavier cougar, having a similar genetic structure and chromosome count.  Studies have indicated the cougar and jaguarundi are next most closely related to the modern cheetah of Africa and western Asia.

The jaguarundi is an elusive animal, concealing itself in heavy undergrowth and stealing away when humans approach.  They travel and forage in pairs.

They are uncommon in zoos as they do not live very happily in captivity.