Wednesday, March 4, 2009

Geoffroy's Spider Monkey


Geoffroy's Spider Monkey is the only Central American monkey species that occurs in all seven Central American countries

Friday, January 30, 2009

Protect Wildlife

Non Aggressive Red tailed hawk


In flight, this hawk soars with wings in a slight dihedral, flapping as little as possible to conserve energy. Active flight is slow and deliberate, with deep wing beats. In wind, it occasionally hovers on beating wings and remains stationary above the ground. When soaring or flapping its wings, it typically travels from 20 to 40 mph (64 km/h), but when diving may exceed 120 mph (190 km/h). When the Red-tailed Hawk walks, its steps are slow and awkward.The Red-tailed Hawk is generally non-aggressive toward people and toward other birds. It is commonly harassed by crows, magpies, owls, other hawks, and even songbirds over territorial disputes, though it is generally not injured. When threatened by a human intruder, a Red-tailed Hawk will generally flee rather than defend its nest.
The Red-tailed Hawk is carnivorous, and an opportunistic feeder. Its diet is mainly small mammals, but it also includes birds and reptiles. Prey varies with regional and seasonal availability, but usually centers on rodents. Additional prey (listed by descending likelihood of predation) include lagomorphs, shrews, bats, snakes, waterfowl, fish, crustaceans and insects.

Wild beast

The ungainly gnu earned the Afrikaans name wildebeest, or "wild beast," for the menacing appearance presented by its large head, shaggy mane, pointed beard, and sharp, curved horns. In fact, the wildebeest is better described as a reliable source of food for the truly menacing predators of the African savanna: lions, cheetahs, wild dogs, and hyenas.

Their habitat comprises the grassy plains and open woodlands of central, southern, and eastern Africa, particularly the Serengeti in Tanzania and Kenya. They travel in large herds and are active day and night, grazing constantly.

Source: National Geographic.org

Red-eyed Tree Frog



The Red-eyed Tree Frog (Agalychnis callidryas) is a small-sized tree frog, reaching lengths of about 5 to 7 centimeters (3 inches), native to Neotropical rainforests in Central America. They are not poisonous and rely on camouflage to protect them. During the day, they remain motionless with their colorful parts hidden. Thus, they appear almost completely green, and well hidden among the foliage.


source:Wikipedia

Friday, January 23, 2009

Chital


I took this picture in the nearby national park.


Chital most commonly occur in herds of ten to fifty individuals, with one or two stags and a number of females and young. They are often fairly tolerant of approach by humans and vehicles, especially where they are accustomed to human disturbance. They do not occur at higher elevation forests where they are usually replaced by other species such as the Sambar deer. Chital eat primarily grasses and vegetation, but also eat their shed antlers as a source of nutrients.

Most beautiful eagle

I took this picture in the nearby national park.


The sea eagle is white on the head, rump and underparts and dark grey on the back and wings. In flight the black flight feathers on the wings are easily seen when the bird is viewed from below. The large, hooked bill is grey with a darker tip, and the eye is dark brown. The legs and feet are cream-white, with long black talons (claws). Young Sea-eagles are brown when juveniles then gradually come to resemble adults, acquiring the complete adult plumage by their fourth year. Birds form permanent pairs that inhabit territories throughout the year. Their loud "goose-like" honking call is a familiar sound, particularly during the breeding season. They chose the tallest tree to nest, and even sometimes man-made pylons.

Tuesday, January 20, 2009

Intelligent - African Gray Parrot


While comparative judgments of animal intelligence are always very difficult to make objectively, Psittaciformes are generally regarded as being the most intelligent of birds. African grey parrots are particularly noted for their cognitive abilities, which are believed to have evolved as a consequence of their history of cooperative feeding as largely tree-dwelling birds in central Africa.
Irene Pepperberg's extensive research with captive African greys, especially the one known as Alex, have provided evidence that these parrots are capable of associating human words with their meanings, at least to some extent, though these conclusions are disputed. Ambitious claims of language use have been made for another African grey, N'kisi, who has a vocabulary of around a thousand words and speaks in sentences.

Fox Squirrels


Fox Squirrels depend primarily on tree seeds for food, but they are generalist eaters and will also consume buds and fruits, cultivated grain, insects, birds' eggs, and small lizards. Cannibalism has been reported, but should be considered very rare. In their regular diet of nuts, fox squirrels are classic scatter-hoarders that bury caches of nuts in dispersed locations, some of which are inevitably left unretrieved to germinate.
Fox Squirrels are strictly diurnal, non-territorial, and spend more of their time on the ground than most other tree squirrels. They are still, however, agile climbers. They construct two types of homes called "dreys", depending on the season. Summer dreys are often little more than platforms of sticks high in the branches of trees, while winter dens are usually hollowed out of tree trunks by a succession of occupants over as many as 30 years. Cohabitation of these dens is not uncommon, particularly among breeding pairs.

Monday, January 19, 2009

Geographic cone snail



The incredibly toxic venom of the geographic cone snail has to be strong enough to paralyze instantly. Otherwise, the fish it preys on would swim away to die, and the slow-moving gastropod would have nothing for its efforts.
Indigenous to the reefs of the Indo-Pacific, geographic cones grow to about 6 inches (15 centimeters) in length and have intricately patterned brown-and-white shells highly prized by shell collectors.
The geographic cone is the most venomous of the 500 known cone snail species, and several human deaths have been attributed to them. Their venom, a complex concoction of hundreds of different toxins, is delivered via a harpoonlike tooth propelled from an extendable

Sunday, January 11, 2009

Milk snakes don't drink milk

Milk snakes activity is mostly nocturnal. They are primarily terrestrial, except the scarlet kingsnake which is known to take shelter under the bark of standing dead trees.Milk snakes eat a lot of different rodents.Milk Snakes are much more opportunistic eaters than the fox snake or corn snake. They have been known to consume a variety of animals including rodents, eggs, birds, reptiles, amphibians, and invertebrates. Nevertheless the diet of an adult milk snake still primarily consists of rodents. They are nocturnal eaters and are often found during the day in old barns and under wood.
Like other members of the king snake family, the milk snakes sometimes eat other snakes, and do have at least some immunity to their venom.

Saturday, January 10, 2009

Burying beetles

Burying beetles have large club-like antennae equipped with chemoreceptors capable of detecting a dead animal from a long way away. After finding a carcass (most usually that of a small bird or a mouse), beetles fight amongst themselves (males fighting males, females fighting females) until the winning pair (usually the largest) remains. If a lone beetle finds a carcass, it can continue alone and await a partner. Single males attract mates by releasing a pheromone from the tip of their abdomens. Females can raise a brood alone, fertilizing her eggs using sperm stored from previous copulations.
The prospective parents begin to dig a hole below the carcass. While doing so, the beetles cover the animal with antibacterial and antifungal oral and anal secretions, slowing the decay of the carcass and preventing the smell of rotting flesh from attracting competition. The carcass is formed into a ball and the fur or feathers stripped away and used to line and reinforce the crypt, where the carcass will remain until the flesh has been completely consumed. The burial process can take around 8 hours. Several pairs of beetles may cooperate to bury large carcasses and then raise their broods communally.

Red-ant dismembered by weaver ants

Weaver ants collaborating to dismember a red ant (the two at the extremities are pulling the red ant, while the middle one cuts the red ant until it snaps).

Friday, January 9, 2009

Red-headed rock agama

It can often be seen in the heat of the day. in the breeding season the males develop their most dramatic markings, the head and neck and also tail turning bright orange, and the body dark blue. Outside of the breeding season, the male is a plain brown. The females and juveniles are always more cryptically marked. This lizard can be climbing rocks and walls.

The dash-and-dot goatfish

The dash-and-dot goatfish has the twin chin barbels typical of goatfishes. The body color is white with a black to dark brown stripe (dash) reaching from the upper lip through the eye and along the body, followed by a black spot (dot) at the base of the caudal fin. Above the stripe, the body has a yellowish tint. Dash-and-dot goatfish from deeper water will usually have red stripes and spots. They can reach a maximum length of 60cm.

Wednesday, January 7, 2009

Largest and oldest known chestnut tree in the world

The Chestnut Tree of One Hundred Horses is the largest and oldest known chestnut tree in the world. Located on Linguaglossa road in Sant'Alfio, on the eastern slope of Mount Etna in Sicily — only 8 km (5 miles) from the mountain's crater — it is generally believed to be 2,000 to 4,000 years old (4,000 according to the botanist Bruno Peyronel from Turin). It is a Sweet Chestnut . Guinness World Records has listed it for the record of "Greatest Tree Girth Ever", noting that it had a circumference of 57.9 m (190 ft) when it was measured in 1780. Above-ground the tree has since split into multiple large trunks, but below-ground these trunks still share the same roots.The tree's name originated from a legend in which a queen of Aragon and her company of one hundred knights, during a trip to Mount Etna, were caught in a severe thunderstorm. The entire company is said to have taken shelter under the tree.

Fearless Hood Mockingbird

Hood Mockingbird is found in dry forests and is omnivorous, though it primarily is a carnivore or scavenger. The species has a highly territorial social structure and has no fear of humans.The bird is extremely aggressive and curious, and has no fear of humans whatsoever. The bird will chase after tourists in search of food, drink, or any unusual object. In some cases, the species will attempt to obtain water from tourists by pecking at their water bottles.
The birds have a strong social structure organized into family groups. Highly territorial, these groups will cooperatively hunt within their area as well as defend it against other groups. Lower-ranking members of the group will assist in caring for the young.The bird is considered to be vulnerable in the wild by BirdLife International due mainly to its limited area.

Sunday, January 4, 2009

Worlds largest fish

The whale shark is considered to be the world's largest fish.
This species, despite its enormous size, does not pose any significant danger to humans. It is a frequently cited example when educating the public about the popular misconceptions of all sharks as "man-eaters". They are actually quite gentle and can be playful with divers. There are unconfirmed reports of sharks lying still, upside down on the surface to allow divers to scrape parasites and other organisms from their bellies. Divers and snorkelers can swim with this giant fish without any risk apart from unintentionally being struck by the shark's large tail fin.

Sea Dragon


The lobes of skin that grow on the Leafy Sea Dragon give it the appearance of seaweed, allowing it to camouflage with its surroundings. Its leafy appearance also allows it to appear to move through the water like a piece of floating seaweed. The Leafy Sea Dragon can also change color to blend in, but this ability relies on the sea dragon's diet, location, and stress levels.
The Leafy Sea Dragon has a long, pipe-like snout that it uses to feed. It primarily eats crustaceans including plankton and mysids, but its diet also includes shrimp and other small fish. It catches its prey using its camouflage ability. Leafy sea dragons oddly enough do not have teeth, which is rare amongst animals that eat small fish and shrimp.
The Leafy Sea Dragon is a cousin of the pipefish and belongs to the family Syngnathidae, along with the seahorse. The Leafy Sea Dragon differs from the seahorse in its appearance, form of locomotion, and the Leafy Sea Dragon's inability to coil or grasp things with its tail. A related species is the weedy sea dragon, which is multi-coloured and grows weed-like fins and can be much smaller than the leafy sea dragon. In the November 2006 issue of National Geographic magazine, marine biologist Greg Rouse is reported as investigating the DNA variation of the two sea dragon species across their ranges.

Saturday, January 3, 2009

Gila monster's venom


Venom is produced in modified salivary glands in the Gila monster's lower jaw, unlike snakes, whose venom is produced in the upper jaw.[15] The Gila monster lacks the musculature to forcibly inject the venom; instead, the venom is propelled from the gland to the tooth by chewing. Capillary action brings the venom out of the tooth and into the victim.[6] The teeth are loosely anchored, which allows them to be broken off and replaced throughout life. Gila monsters have also been observed to flip over while biting the victim, presumably to aid the flow of the venom into the wound. Because the Gila monster's prey consists mainly of eggs, small animals, and otherwise "helpless" prey, it is thought that the Gila monster's venom evolved for defensive rather than for hunting use. A defensive use would also explain the Gila monster's bright warning coloration

Frill-necked lizards - one meter length


Adult frill-necked lizards may grow up to one metre in total length. They often walk quadrupedally when on the ground. When frightened they begin to run on all-fours and then accelerate onto the hind-legs. In Australia, the frill-necked lizard is also known as the "bicycle lizard" because of this behaviour. Males are significantly larger than females both as juveniles and when mature. The frill of the Australian frilled dragon is used to scare off potential predators — as well as hissing and lunging. If this fails to ward off the threat, the lizard flees bipedally to a nearby tree where it climbs to the top and relies on camouflage to keep it hidden. Adult males fight for mates, displaying their frills and biting each other.

Dangerous yellowjacket


The yellowjacket has a yellow coat to warn other animals that it is dangerous and should stay away. It is bold and aggressive, and if provoked, it can sting repeatedly and painfully. The German yellowjacket builds its nests in cavities (not necessarily underground) with the peak worker population in temperate areas between 1,000 and 3,000 individuals between May to August, each colony producing several thousand new reproductives after this point, through November. The Eastern yellowjacket builds its nests underground, also with the peak worker population between 1,000 and 3,000 individuals similar to the German yellowjacket. Nests are built entirely of wood fiber (usually weathered or dead) and are completely enclosed (football or soccer-ball shaped) except for a small opening (entrance) at the bottom. The color of the paper is highly dependent on the source of the wood fibers used. The nests contain multiple, horizontal tiers of combs (10 or more) within. Larvae hang down in combs.

Friday, January 2, 2009

Weaver ants as natural biocontrol agents against agricultural pests


Weaver ant workers hunt and kill insects that are potentially harmful plant pests, trees harboring weaver ants benefit from having decreased levels of herbivory. They have traditionally been used in biological control in Chinese and Southeast Asian citrus orchards from around least 400 AD. Many studies have shown the efficacy of using weaver ants as natural biocontrol agents against agricultural pests.Fruit trees harboring weaver ants produce higher quality fruits, show less leaf damage by herbivores, and require fewer applications of synthetic pesticides.

Ant mimicking spiders


Some species also look strikingly like an ant.
Spiders in this genus are commonly called "antmimicking spiders", although there are many other spiders that mimic ants. Colors vary from black to yellow, depending on the mimicked ant species. One African species was observed to mimick one species when immature, and another as an adult

Thursday, January 1, 2009

Pouched Frog


It is a small frog about 2.5 cm long, red-brown in colour, with some individuals having reverse V shaped patches and/or with light brown dots randomly on their backs. Most specimens have a darker brown stripe that runs from the nostril through the eye down the side of the body. A skin fold is present on either side of the frog running from its eye to its hip. Its hands and feet are completely free of webbing and discs, but the tips of the fingers and toes are swollen. The eye is gold with brown flecks and when the pupil is constricted it is horizontal. There is a 'pocket' on its hip where the frog's tadpoles travel to after hatching.The tadpoles will reside in the pouch until they have morphed.
This species formerly experienced declines, however it has recovered.