
Photo: Miroslaw
Swietek
Photographer Miroslaw Swietek took the magnificent macro photo of a dragonfly covered in dew. I wonder how the dew drops affect the insect's compound eyes?
See that and more photos of dew-covered insects over at LiveScience: Link
John VandenBrooks of Arizona State University in Tempe examined how changing levels of oxygen in the atmosphere may effect the size that insects grow:
The team raised cockroaches, dragonflies, grasshoppers, meal worms, beetles and other insects in atmospheres containing different amounts of oxygen to see if there were any effects.
One result was that dragonflies grew faster into bigger adults in hyperoxia.
Experimenting with giant insects — what could possibly go wrong?
Link via DVICE | Image: Warner Bros.
Biologist Charles Anderson has uncovered what he believes to be the longest migration route of any insect in the world. He plotted the appearance of the dragonflies known as globe skimmers in the Maldives and deduced that they must fly from Africa!
In Uganda, they appear twice each year in March or April and again in September, while further south in Tanzania and Mozambique they appear in December and January.
That strongly suggest that the dragonflies take advantage of the moving weather systems and monsoon rains to complete an epic migration from southern India to east and southern Africa, and then likely back again, a round trip of 14,000 to 18,000km.
From the Upcoming
ueue, submitted by healthylivinggal83.

(image credit: Cessna 206)

