Tuesday, June 5, 2012

Birds Ended The Reign Of Giant Insects

Photo: This fossil insect wing (Stephanotypus schneideri) from the period about 300 million years ago when insects reached their greatest sizes, measures 19.5 centimeters (almost eight inches) long. The largest species of that time were even bigger, with wings 30 centimeters long. For comparison, the inset shows the wing of the largest dragonfly of the past 65 million years. (Credit: Photo by Wolfgang Zessin.)

Reign Of The Giant Insects Ended With The Evolution Of Birds -- Science Daily

ScienceDaily (June 4, 2012) — Giant insects ruled the prehistoric skies during periods when Earth's atmosphere was rich in oxygen. Then came the birds. After the evolution of birds about 150 million years ago, insects got smaller despite rising oxygen levels, according to a new study by scientists at the University of California, Santa Cruz.

Read more ....

My Comment: 9-10 inch long insects .... yech.

No comments: