Wednesday, April 27, 2011

Cricket meat eaters from the Age of Dinosaurs


A predatory insect fossils from the age of dinosaurs recentlyfound in a layer of limestone which is located in northern Brazil.This insect is a carnivorous insect-eating meat that comes from100 million years ago.

Crickets ancestor that lived in the Cretaceous period, just before the supercontinent Gondwana (supercontinent covering the African continent, South AmericaAustraliaIndiaArabia, andAntarctica at this time) split.

As quoted from the website LiveScience, he was of the genusSchizodactylus or oblique-legged crickets. GenusSchizodactylus includes current crickets, grasshoppers, and theanimal named katydid.

"This name they can get fit with their feet that allow them to curl up and support their bodies in the sandy habitat to hunt theirprey," said Sam Heads, Chairman of the researcher whodiscovered the fossil.

When hunting, said the Heads, the species is actually not using a special strategy. This fat-bodied insects come out at nightcombing their habitat to find prey. "They can move quickly whenneeded ... and they are quite voracious," said Sam, who comesfrom the University of Illinois.

At least, he has differences with the current cricket. With a length of about 6 cm from head to the back of his body, he has a ratherodd posture.

Antennae longer than body. Cricket also has wings and legsrolled sharp like snow shoes. According to the Heads, is tosupport it can still be planted in sandy areas.

However, a very aggressive crickets can not fly even though ithas wings. Wings, said normally only be separated Heads whennecessary. In general, said the Heads, cricket is not so muchexperience evolution or undergoing a period of 'evolutionarystasis' for at least 100 million years

No comments:

Post a Comment