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Thursday 10 April 2014

Interesting insects taken from net



The Longest Insect
The Borneo walking stick (Phobaeticus kirbyi) can grow to up to 32 centimeters long, with another 14 centimeters if you measure the legs stretched out

The Biggest
Goliath beetles (Goliathus) are the largest insects in terms of bulk and weight. They can reach over 4 inches long

Strongest animal on earth.
The Hercules beetle (Dynastes hercules) is a species of rhinoceros beetle that lives in South America. It can grow to over 6 inches in length (counting its horns), but its claim to fame is its strength. The Hercules beetle can support 850 times its own weight on its shell! This beetles eats only vegetation and is not aggressive, except to other Hercules beetles, when males fight each other over females.

Weird Lifecycle
The twisted-wing parasite (Strepsiptera) is an order of insects who display a gruesome lifestyle. The larval stage parasite will climb a flower and wait for an insect pollinator (bee or wasp) to come along. They climb aboard the bee, burrow into its body, and change into a second-stage larva. They feed off the blood and organs of the host. An adult male parasite will emerge from the host and search for a mate -a process that takes such little time that he never develops a mouth. The adult female remains in the host’s body for the rest of her life, never growing legs or wings. She mates by pushing only her reproductive organs outside of the bee’s body! Her offspring will emerge and look for new hosts.

Violent Sex
The gruesome behavior or the male African bat bug (Afrocimex constrictus) is directed at other bat bugs. Instead of copulating via the female’s sex organs, he will stab her abdomen to release sperm directly into her bloodstream. So the females have evolved paragenitals, a “spongy reservoir of immune cells” as a defense against these tactics. But since male bat bugs are not particular when it comes to mating, some male bat bugs have also developed paragenitals to defend themselves against sexual attack!

Trap and Torture.
Tree ants (Allomerus decemarticulatus) in the Amazon contruct elaborate traps for other insects they feed upon. They build these traps from tree fibers reinforced with fungus. When an unsuspecting insect encounters the trap, the ants emerge from hiding underneath and pull the prey’s legs to immobilize them, almost like a torture rack. Then they dismember the victim and carry the parts off to the colony. This method of “drawing and quartering” allows the ants to dine on insects much larger than themselves.

Unstoppable Swarmers.
Driver ants (Dorylus) or siafu are the masters of the swarm. Dorylus includes several species of army ants, primarily found in Africa. Colonies can contain 20 million ants! When the column is on the march looking for food, people can avoid them just by stepping aside. But there have been cases where invalids have been killed (by asphyxiation) when a column of ants marches through the house. They have been known to kill and eat animals up to the size of small zebras.

Deadliest of all.
The mosquito (Culicidae) causes the deaths of millions of people every year. They spread yellow fever, dengue fever, encephalitis, West Nile Virus, and malaria from person to person, without being affected by the diseases themselves. They also transmit the debilitating filariasis worm, which can lead to elephantiasis in humans. Mosquitos are nasty business.

Wednesday 2 April 2014

interesting facts about lion



Lions are the only big cats to live in groups, called prides. Prides are close family groups. They work together to defend territory and hunt.
The females in the pride tend to do the majority of the hunting. They work as a group and use intelligent hunting tactics to catch prey which they would not be able to catch alone as they are faster than them.
Lions enjoy relaxing and lazing around. They spend between 16 and 20 hours each day resting and sleeping. They have few sweat glands so they wisely tend to conserve their energy by resting during the day and become more active at night when it is cooler.
Lionesses are caring mothers who will even take care of a neglected cub, allowing him/her to suckle and giving them a chance to survive. Two or more lionesses in a group tend to give birth around the same time, and the cubs are raised together. Cubs are extremely playful.
Lions roar to communicate their position to other prides. A lion’s roar is the loudest of any big cat and can be heard up to 8 km away.
Lions have terrific night vision. They are 6 times more sensitive to light than humans. This gives them a distinct advantage over some prey species when hunting at night.
Lions communicate through a range of behaviours and their expressive movements are very highly developed. They will perform peaceful tactile actions such as licking each other and rubbing heads. Head rubbing, or nuzzling, is a common greeting behaviour for lions. They also communicate through a variety of vocalisations including purrs, snarls, miaws and hissing. Their vocalisations also vary in intensity and pitch.
The mane of the male lion is a distinctive characteristic of lions as no other big cats have them. It makes male lions appear larger, thus allowing them to be more intimidating. It also signals sexual maturity and health status; lionesses tend to favour denser and darker manes.
Lions are symbols of strength and courage and have been celebrated throughout history for these characteristics. They are also common symbols for royalty and stateliness, hence the phrase ‘king of the jungle’.
Ancient Egyptians venerated lions as their war dieties due to their strength, power and fierceness. The famous sphinxes are just one of many mythical depictions of the lion in Egyptian culture.
Although lions belong in the wild they are still used by travelling circuses in the UK.
African lions are the most social of all big cats and live together in groups or “prides.” A pride consists of about 15 lions.
 Male lions defend the pride’s territory while females do most of the hunting. Despite this, the males eat first.
 These majestic cats are threatened by habitat loss. The lion is listed as vulnerable on the IUCN Red List of Threatened Species.
The lion was once found throughout Africa, Asia and Europe but now exists only in Africa with one exception. The last remaining Asiatic lions are found in Sasan-Gir National Park in India, which was primarily created to protect the species. Currently, there are approximately 350-400 lions in the park.
A lion can run for short distances at 50 mph and leap as far as 36 feet.
 Even though the lion is sometimes referred to as the “king of the jungle,” it actually only lives in grasslands and plains. The expression may have come from an incorrect association between Africa and jungles or may refer to a less literal meaning of the word jungle.
 A good gauge of a male lion’s age is the darkness of his mane. The darker the mane, the older the lion.
 A lion’s heels don’t touch the ground when it walks.