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Wednesday, November 19, 2008

Philippine Tarsier - The Largest Eyes Mammal

Philippine Tarsier - The Largest Eyes Mammal

The Philippine Tarsier (Tarsius syrichta), known locally as Philippine Tarsier - The Largest Eyes Mammalthe Maumag in Cebuano/Visayan, is an endangered tarsier species endemic to the Philippines. It is found in the southeastern part of the archipelago, particularly in the islands of Bohol, Samar, Leyte, and Mindanao. Its name is derived from its elongated "tarsus" or ankle bone.

Its geographic range also includes Maripipi Island, Siargao Island, Basilan Island and Dinagat Island. Tarsiers have also been reported in Sarangani, although they may be different subspecies. Being a member of a family that is about 45 million years old, it was only introduced to western biologists in the 18th century.

The Philippine Tarsier is a tiny animal, measuring about 4 to 6 inches (15 cm) in height. The small size makes it difficult to spot. The average mass for males is around 134 grams, and for females, around 117 grams. The average adult is about the size of a human fist and will fit very comfortably in the human hand.

Like all tarsiers, the Philippine Tarsier's eyes are fixed in its skull; they cannot turn in their sockets. Instead, a special adaptation in the neck allows its round head to be rotated 180 degrees. The large membranous ears are mobile, appearing to be almost constantly moving, allowing the tarsier to hear any movement. It has uniquely large eyes (disproportionate to its head and body), which are listed in the Guinness Book of Records as the largest eyes on any mammal. These huge eyes provide this nocturnal animal with excellent night vision.

The Philippine Tarsier has thick and silky fur which is colored gray to dark brown. The thin tail, usually used for balance, is naked or bald except for a tuft of hair at the end, and is about twice the body length. Its elongated "tarsus," or ankle bone, which gives the tarsier its name, allows it to jump at least three meters from tree to tree without having to touch the ground.[Its long digits are tipped with rounded pads that allow T. syrichta to cling easily to trees and to grip almost any surface. The thumb is not truly opposable, but the first toe is. All of the digits have flattened nails, except for the second and third toes, which have sharp claws specialized for grooming.

The dental formula is 2:1:3:3 in the upper jaw and 1:1:3:3 in the lower jaw, with relatively small upper canines.via

Other picture of Philippine tarsier.

Philippine Tarsier - The Largest Eyes Mammal

Monday, October 20, 2008

Redback Spider - Snake-Eating Spider

Would you believe that there are spiders who can really kill Redback Spider - Snake-Eating Spidersnakes? Yes, not only eagles can catch snakes but spiders as well.

Just like this hapless snake became an Australian redback spider’s lunch last Monday, much to the chagrin of the receptionist who discovered the deadly spider and its prey in their office.

At 14 centimeters in length, the snake is significantly larger than the redback spider, but the deadly arachnid made the kill anyway. The receptionist thinks the snake got caught in the spider’s web Monday night. After receiving its deadly dose of spider poison, the snake was rolled up into a web of its own on Wednesday.

What is Redback Spider?

Redback Spider or Latrodectus mactans is a black widow spider and one of the most venomous spiders in the world. It's found throughout the United States, Canada, Mexico and the West Indies. It builds strong retreats close to the ground. However, it also spreads its web over plants. It always need some kind of a shelter and can often be seen in small crevices.

Other pictures of redback spider.

Redback Spider - Snake-Eating SpiderRedback Spider - Snake-Eating Spider

Video of a redback spiders.

Wednesday, October 1, 2008

Philippine Eagle – The Most Powerful Birds In The World

Philippine Eagle – The Most Powerful Birds In The World
The Philippine Eagle also known as Monkey-eating eagle. Philippine Eagle – The Most Powerful Birds In The WorldThe Philippine Eagle (Pithecophaga jefferyi) is a giant forest raptor endemic to the Philippines. It is considered one of the tallest, rarest, largest and most powerful birds in the world. Unfortunately, it is also one of the world's rarest and certainly among its most critical endangered vertebrate species.

The eagle is known to be geographically restricted to the islands of Luzon, Samar, Leyte and Mindanao. Philippine eagles are monogamous and they bond for life. But contrary to claims that they opt to remain unpaired in the death of their mate, evidences from natural pairing techniques and data from all other raptors indicate that they take in new mates as replacement. Females reach sexual maturity at around five years and males, at seven.

The Philippine Eagle's head is adorned with long brown feathers. These feathers give it the appearance of a lion's mane, which in turn resembles the mythical gryphon. The back of the Philippine Eagle is brown, the underside white; the heavy legs are yellow with large, powerful claws; the prominent large, high-arched, deep bill is a bluish-gray, with blue-gray eyes.

The average female is about 1 meter (3.3 ft) long, weighs about 7 kg (15.5 lb), and has a wingspan of 2 meters (6.7 ft). This makes the Philippine Eagle the world's largest eagle, and has the largest wing surface area. The adult male is about 10-20% smaller and averages at about 5 kg (11 lbs). Life expectancy for a wild eagle is estimated to be around 30-60 years.

Pictures of Phillipine Eagle

Monday, September 29, 2008

Cheetah - The Fastest Land Mammal

Cheetah - The Fastest Land Mammal

The cheetah (Acinonyx jubatus) is an atypical Cheetah - The Fastest Land Mammalmember of the cat family (Felidae) that is unique in its speed, while lacking climbing abilities. As such, it is placed in its own genus, Acinonyx.

The Cheetah is the fastest land mammal in the world and can reach speeds of 80-100 km/h. However, it is only able to keep up this speed for a short period of time. The cheetah has a slender body, a small head, and long legs, which makes it ideal for speed, it is also the only cat without retractable claws which allows the claws to always be exposed, makes for better traction when running. The tail is also adapted to help maintain balance at high speeds and during quick turns.

The cheetah has a background colour of light golden yellow/tan, covered with small, round, black spots on the cheeks, forehead, crown, neck, and limbs. They have a distinctive black tear-shaped from the corner of the eye to the corner of the mouth and a mane-like black stripe running the length of their back.

Cheetahs do not roar like lions and tigers. Instead, they make birdlike chirping sounds for communication with other members of the family and they hiss when angered or threatened and purr loudly when they are content. If they are alarmed they whine or growl.

A cheetah has a good sense of smell and communicate by scenting tree trunks, bushes and termite mounds with their waste.

Cheetahs are typically solitary creatures although males sometimes live with a small group of brothers from the same litter.



Males are very sociable and will group together for life, usually with their brothers in the same litter; although if a cub is the only male in the litter then two or three lone males may group up, or a lone male may join an existing group.These groups are called coalitions. A coalition is six times more likely to obtain an animal territory than a lone male, although studies have shown that coalitions keep their territories just as long as lone males — between four and four and a half years.

Males are very territorial. Females' home ranges can be very large and trying to build a territory around several females' ranges is impossible to defend. Instead, males choose the points at which several of the females' home ranges overlap, creating a much smaller space, which can be properly defended against intruders while maximizing the chance of reproduction. Coalitions will try their most to maintain territories in order to find females with whom they will mate. The size of the territory also depends on the available resources; depending on the part of Africa, the size of a male's territory can vary greatly from 37 to 160 square kilometers.

Males mark their territory by urinating on objects that stand out, such as trees, logs, or termite mounds. The whole coalition contributes to the scent. Males will attempt to kill any intruders and fights result in serious injury or death.


Unlike males and other felines, females do not establish territories. Instead, the area they live in is termed a home range. These overlap with other females' home ranges, often those of their daughters, mothers, or female littermates. Females always hunt alone, although cubs will accompany their mothers to learn to hunt once they reach the age of five to six weeks.

The size of a home range depends entirely on the availability of prey. Cheetahs in southern African woodlands have ranges as small as 34 square km, while in some parts of Namibia they can reach 1,500 square kilometres (580 sq mi).

Other pictures of Cheetah and Cubs.

Adult CheetahCheetah Kills Gazelle
Cheetah and Cubs
Cheetah Cub

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