Wednesday, January 16, 2013

Spiders pretending to be ants??!

What?? Spiders pretending to be ants??!! I didn’t believe it either when I first saw it, and that’s why I have written this to persuade you to believe it. And it’s not a lie.

Either they want to hide from predators, or just like the taste of ants, or just want to disguise themselves as an ant. Lots of spiders look so similar to ants that you can barely tell the difference, until they eat you!
Hope this helped and these images are some proof:









In the first picture, there is something really interesting, it looks like there are two spiders, but in fact it’s just one. It’s has over sized jaws to spar with other males and show off to the females, but since the ants don’t have monstrous fangs, the jaws themselves are disguised as an entire second ant.

The last photo is a Myrmarachne plataleoides, also called the Kerengga. It’s a jumping spider that copies the Kerengga or weaver ant in morphology and behavior. This species is found in India, Sri Lanka, China and many parts of Southeast Asia.
A good thing about these ant-like spiders is that they don’t bite people.
The body of the M. plataleoides appears like an ant, which has three body segments and six legs, by having constrictions on the cephalothorax and abdomen. The males resemble a larger ant carrying a smaller one.

Posted by Farnam

Thursday, January 10, 2013

The Life Of A Cicada

Cicadas have an amazing life, but we only know them as the annoying insect in our backyard.

The adult insect, known as an imago, is usually 2 to 5 cm (1 to 2 in) long, although some tropical species can reach 15 cm (6 in), e.g. Pomponia imperatoria from Malaysia. Cicadas have well-known eyes which are set wide apart on the sides of the head, short antennae protruding between or in front of the eyes, and front wings. Also, commonly overlooked, cicadas have three small eyes.

Cicadas live underground as nymphs for most of their lives, at depths ranging from about 30 cm (1 ft) down to 2.5 m (about 8.5 ft). The nymphs feed on root juice and have strong front legs for digging.

Cicadas are commonly eaten by birds, and sometimes by squirrels.

After mating, the female cuts slits into the bark of a twig, and into these she deposits her eggs. She may do so repeatedly, until she has laid several hundred eggs. When the eggs hatch, the newly hatched nymphs drop to the ground, where they burrow. Most cicadas go through a life cycle that lasts from two to five years. But some species have much longer life cycles, such as the North American specie named Magicicada, which goes through either a 17-year or, in some parts of the world, a 13-year life cycle. These long life cycles might have been as a response to predators, a predator with a shorter life cycle of at least two years could not reliably prey upon the cicadas.


In the final nymphal instar(the development stage of insect), they make an exit tunnel to the surface and emerge. They then molt (shed their skins) on a nearby plant for the last time and emerge as adults. The abandoned exoskeleton remains, still clinging to the bark of trees.


Cicada nymphs suck xylem from the roots of various species of tree, including oak, cypress, ash, and maple.


Around 220 cicada species have been identified in Australia.
Cicadas have been eaten in China, Malaysia, Burma, Latin America, the Congo and in the United States. In North China, cicadas are skewered, deep fried or stir fried as a delicacy
Shells of cicadas are employed in the traditional medicines of China.

This video explains what I have just said in a video: