Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Testing a Claim about Mean: Unknown Population SD01:21

Testing a Claim about Mean: Unknown Population SD

5.3K
A complete procedure of testing a hypothesis about a population mean when the population standard deviation is unknown is explained here.
Estimating a population mean requires the samples to be approximately normally distributed. The data should be collected from the randomly selected samples having no sampling bias. There is no specific requirement for sample size. But if the sample size is less than 30, and we don't know the population standard deviation, a different approach is used;...
5.3K
Characteristics of Dry Friction01:21

Characteristics of Dry Friction

912
Dry friction occurs when two solid surfaces slide against each other without any lubrication or fluid present. It causes resistance when pushing objects along a surface, like a gardener pushing a wheelbarrow. The force applied to move the cart causes dry friction between the wheel and the ground.
Before the wheelbarrow starts moving, the static frictional force acts tangentially to the contact surface, opposing the force that is about to induce the motion. This frictional force prevents the...
912

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A mosaic of microclimates: biodiversity outcomes and wildlife habitat potential in large-scale solar facilities.

Biological reviews of the Cambridge Philosophical Society·2026
Same author

Subdigital integumentary microstructure in <i>Cyrtodactylus</i> (Squamata: Gekkota): do those lineages with incipiently expressed toepads exclusively exhibit adhesive setae?

Beilstein journal of nanotechnology·2026
Same author

Toes up! Digital hyperextension of adhesive toepads in frogs.

Ecology·2025
Same author

What's the point? The functional role of claws in pad-bearing taxa (Gekkota: Diplodactylidae).

Proceedings. Biological sciences·2025
Same author

From wild to domestic and in between: how domestication and feralization changed the morphology of rabbits.

Proceedings. Biological sciences·2025
Same author

Large-scale and long-term wildlife research and monitoring using camera traps: a continental synthesis.

Biological reviews of the Cambridge Philosophical Society·2025

Related Experiment Video

Updated: Dec 26, 2025

Manufacturing, Control, and Performance Evaluation of a Gecko-Inspired Soft Robot
07:40

Manufacturing, Control, and Performance Evaluation of a Gecko-Inspired Soft Robot

Published on: June 10, 2020

15.1K

Nonlinear variation in clinging performance with surface roughness in geckos.

Rishab Pillai1, Eric Nordberg1, Jendrian Riedel1

  • 1College of Science and Engineering James Cook University Townsville QLD Australia.

Ecology and Evolution
|March 19, 2020
PubMed
Summary

Gecko clinging performance on surfaces is not a simple decline with roughness. Their shear force varies nonlinearly, performing best on smooth glass and rough sandpaper, not fine sandpaper.

Keywords:
adaptationadhesion biomechanicsecomechanicsgekkotaphysiologyzoology

More Related Videos

A Behavioral Assay for Mechanosensation of MARCM-based Clones in Drosophila melanogaster
05:48

A Behavioral Assay for Mechanosensation of MARCM-based Clones in Drosophila melanogaster

Published on: December 30, 2015

10.6K
Quantification of Drosophila Grooming Behavior
09:18

Quantification of Drosophila Grooming Behavior

Published on: July 19, 2017

9.6K

Related Experiment Videos

Last Updated: Dec 26, 2025

Manufacturing, Control, and Performance Evaluation of a Gecko-Inspired Soft Robot
07:40

Manufacturing, Control, and Performance Evaluation of a Gecko-Inspired Soft Robot

Published on: June 10, 2020

15.1K
A Behavioral Assay for Mechanosensation of MARCM-based Clones in Drosophila melanogaster
05:48

A Behavioral Assay for Mechanosensation of MARCM-based Clones in Drosophila melanogaster

Published on: December 30, 2015

10.6K
Quantification of Drosophila Grooming Behavior
09:18

Quantification of Drosophila Grooming Behavior

Published on: July 19, 2017

9.6K

Area of Science:

  • Biomechanics
  • Evolutionary Biology
  • Zoology

Background:

  • Geckos utilize adhesive toe pads for locomotion across diverse microhabitats.
  • Previous studies on gecko adhesion often used artificial, smooth substrates.
  • The relationship between gecko adhesion and natural surface roughness remains unclear.

Purpose of the Study:

  • To investigate gecko shear force generation on substrates mimicking natural surfaces.
  • To determine if gecko attachment performance declines monotonically or nonlinearly with increasing surface roughness.

Main Methods:

  • Tested gecko shear force (clinging performance) on three artificial substrates: smooth glass, fine sandpaper, and coarse sandpaper.
  • Substrates were chosen for microtopographies comparable to natural surfaces encountered by geckos.

Main Results:

  • Gecko shear force did not decrease monotonically with increasing surface roughness.
  • Clinging performance varied nonlinearly across the tested substrates.
  • Performance was highest on smooth glass and rough coarse sandpaper, and lowest on fine sandpaper.

Conclusions:

  • Gecko adhesion is not solely dependent on surface smoothness but interacts nonlinearly with roughness.
  • The findings suggest that the gecko's adhesive system is adapted to perform effectively on a range of natural surface textures.
  • Further research into the specific mechanisms of the gecko adhesive apparatus is warranted.