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tag stick insects developmental biology

Close up photo of a wing
Unearthing the Evolutionary Origins of Insect Wings
Jef Akst | Apr 4, 2022 | 6 min read
A handful of new studies moves the needle toward a consensus on the long-disputed question of whether insect wings evolved from legs or from the body wall, but the devil is in the details.
Sorting out the Science of Stickiness
Ricki Lewis | Feb 3, 2002 | 6 min read
For many animals, to stick is to survive. Nature's varied adhesive structures and substances enable animals to stick to inert substrates, to each other, and even to parts of themselves. An octopus uses its suckers to grab food, a gecko coordinates its highly specialized feet to ascend a wall, and a mussel emits strings of proteinaceous goo to hold fast to a rock in times of turbulence. Insects coordinate their jumping motions by choreographing contact of leg parts. Some species can even multitas
An illustration of green bacteria floating above neutral-colored intestinal villi
The Inside Guide: The Gut Microbiome’s Role in Host Evolution
Catherine Offord | Jul 1, 2021 | 10+ min read
Bacteria that live in the digestive tracts of animals may influence the adaptive trajectories of their hosts.
Freeze Frame
Jeffrey M. Perkel | Feb 1, 2009 | 10 min read
How to troubleshoot sample preparation for cryo-electron microscopy, an up-and-coming structural biology technique.
A scanning electron micrograph of a coculture of E. coli and Acinetobacter baylyi. Nanotubes can be seen extending from the E. coli.
What’s the Deal with Bacterial Nanotubes?
Sruthi S. Balakrishnan | Jun 1, 2021 | 10+ min read
Several labs have reported the formation of bacterial nanotubes under different, often contrasting conditions. What are these structures and why are they so hard to reproduce?
Tracking the Red-Eyed, Sluggish, and Ear-Splitting
Tabitha Powledge | Jul 18, 2004 | 6 min read
© Chris Simon, University of ConnecticutTwo cicadas mate.It's a bit tricky, getting a tiny drop of Super Glue in exactly the right place on a cicada's thorax. Martin Wikelski must affix his microtransmitter far enough forward so that it doesn't interfere with her wings, because her wings, and how far she flies with them, are why Wikelski, a physiological ecologist at Princeton University, is spending a cloudy May morning watching ungainly red-eyed insects struggle out of their exoskeletons
Hanging On To A Research Grant For Decades: What's The Secret?
Scott Huler | May 24, 1992 | 6 min read
Wisconsin geneticist Oliver Nelson: "Stick with the real problems. Stay flexible and learn new techniques." Scan the lists of grants awarded by the National Institutes of Health or the National Science Foundation and you'll find that there are several hundred scientists who seem to have the knack of finding a funding source and keeping it -- not for the one or two renewals that most scientists consider the answer to a prayer, but for two or three decades. How do they manage this? Scientists w
Nature's Own Version of Superglue
Leslie Pray | Jun 23, 2002 | 5 min read
Volume 16 | Issue 13 | 24 | Jun. 24, 2002 Previous | Next Nature's Own Version of Superglue Understanding how insect feet adhere to slippery, wet surfaces has been a centuries-long quest | By Leslie Pray Image: Courtesy of Isle of Wight History Centre A close-up picture of the common fly. "The foot of a fly is a most admirable and curious contrivance, for by this the flies are enabled t
Centrifuge Improvements Put New Spin On A Laboratory Workhorse
Howard Goldner | Mar 5, 1995 | 7 min read
A true laboratory workhorse, the centrifuge has been an essential part of most biological labs for many years. Using centrifugal force obtained by spinning experimental samples at high revolutions per minute (rpm), the device functions as a preparative method to separate various sample components, within minutes, for further treatment. Ultracentrifugation is an even more powerful technique that is used in analytical studies involving the characterization of and interactions between biological m
Short Shrift to Evolution?
Barry Palevitz and Ricki Lewis | Feb 1, 1999 | 7 min read
Editor's Note: In this essay, the authors--both scientists and writers--discuss recent news stories on evolution and express their opinions on how the stories were handled by the mainstream press. Evolution took center stage at the National Association of Biology Teachers (NABT) annual meeting in Reno, Nev., Nov. 3-8, 1998. If the teachers needed a theme, evolution was a logical choice--after all, it underlies and unifies contemporary biology. But NABT had other fish to fry. Despite a spate of c

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