amber
laelaps | May 20, 2010Mammal hairs preserved in amber specimen ARC2-A1-3. a - First fragment; b - Line drawing of first fragment; c - Second fragment; d - Line drawing of second fragment; e - Close-up of second fragment to show the cuticular surface.
About 100 million years ago, in a coastal forest located in what is today southwestern France, a small mammal skittered up the trunk of a conifer tree. As it did so it lost a few of its hairs, and this minor event would have been entirely unremarkable if two of those hairs had not settled in some tree sap and, in the course of time, become entombed in a piece of amber…
grrlscientist | April 12, 2008tags: What Bugged the Dinosaurs?, dinosaurs, insects, disease, George Poinar, Roberta Poinar, book review
I grew up with a fondness for dinosaurs. Their unbelievable size, their peculiar shapes, and their undeniable absence from the world as I knew it were all sources of fascination. But never once did I think of the dinosaurs as being plagued by biting insects and other blood-sucking arthropods; mosquitoes, flies, ticks and mites were creatures that haunted camping trips, picnics and attics, not the majestic dinosaurs! But according to the new book, What Bugged the Dinosaurs? Insects,…
awild | April 1, 2008
If you watch this video about a new technology for visualizing insect fossils hidden in opaque amber, pay special attention around 0:36-0:44. There's a brief 3D image of what is clearly a well-preserved sphecomyrmine ant. The clip is excerpted from a detailed demonstration here, showing the insect in all its glory (warning: 57MB!). It's among the most detailed glimpses of a Sphecomyrmine yet.
Why is this ant interesting? Sphecomyrminae is in many respects a classic piece of evidence for the wasp ancestry of ants. It is an extinct Cretaceous subfamily that shows a few characteristics of…
grrlscientist | January 14, 2008tags: Sir David Attenborough, Attenborough in Paradise, DVD review, BBC programming, nature filming, filmography
I've always enjoyed David Attenborough's nature programs and films when I've managed to see them on TV and now, thanks to several of my readers, I've been able to view nearly everything that Attenborough has available on DVD. But after watching the wonderful collection of films included in Attenborough in Paradise and Other Personal Adventures (BBC Worldwide; 2007), I have been transformed from a pleased watcher into an unabashed and enthusiastic admirer.
Attenborough in Paradise…