Some Barnacles Can Move Around to Improve Feeding Position
Some Barnacles Can Move Around to Improve Feeding Position
The Scientist spoke with marine biologist and barnacle researcher John Zardus about why turtle barnacles—previously thought to be immobile—in fact slowly travel. He thinks the answer is food.
Some Barnacles Can Move Around to Improve Feeding Position
Some Barnacles Can Move Around to Improve Feeding Position

The Scientist spoke with marine biologist and barnacle researcher John Zardus about why turtle barnacles—previously thought to be immobile—in fact slowly travel. He thinks the answer is food.

The Scientist spoke with marine biologist and barnacle researcher John Zardus about why turtle barnacles—previously thought to be immobile—in fact slowly travel. He thinks the answer is food.

locomotion
With Video
Australian Beetles Walk on the Underside of Water’s Surface
Australian Beetles Walk on the Underside of Water’s Surface
Lisa Winter | Jul 15, 2021
Watch one scurry around upside down in a remarkably unusual form of locomotion.
Questions Raised About How an Ancient Hominin Moved
Questions Raised About How an Ancient Hominin Moved
Abby Olena | Feb 24, 2021
A new analysis of the hand of the 4.4-million-year-old partial skeleton of Ardipithecus ramidus indicates that the human ancestor may have climbed and swung through trees like chimpanzees do.
Image of the Day: Foot Biomechanics
Image of the Day: Foot Biomechanics
Amy Schleunes | Mar 2, 2020
A new study highlights the importance of the transverse arch in regulating the stiffness of the human foot.
How One Neuron Regulates Two Separate Behaviors
How One Neuron Regulates Two Separate Behaviors
Ruth Williams | Nov 14, 2019
A major sensory neuron in roundworms distinguishes proprioception from harmful touch by sending out local or whole-cell signals, respectively.
Ape Fossils Shed New Light on Evolution of Bipedalism
Ape Fossils Shed New Light on Evolution of Bipedalism
Catherine Offord | Nov 7, 2019
The 12-million-year-old bones of a previously unknown species named Danuvius guggenmosi challenge the prevailing view about when and where our ancestors first started walking upright.
Image of the Day: Flight Styles
Image of the Day: Flight Styles
Emily Makowski | Oct 25, 2019
The evolution of different ways of flying in birds affected wing range of motion, but not wing shape.
Image of the Day: Flying Fish Robot
Image of the Day: Flying Fish Robot
Emily Makowski | Sep 18, 2019
The developers envision their device could be used to collect water samples in hazardous environments.
Microbial Motors
Microbial Motors
The Scientist Staff | Jun 1, 2019
Watch a type IV pilus, which powers some bacterial species' movement, in action.
Image of the Day: Baby Steps
Image of the Day: Baby Steps
Chia-Yi Hou | May 28, 2019
Watch young birds move like rock climbers.
Image of the Day: Making Waves
Image of the Day: Making Waves
Carolyn Wilke | Mar 6, 2019
Slithering snakes mimic waves of light, “diffracting” as they pass by an obstacle.
Image of the Day: Soaring Manta Rays
Image of the Day: Soaring Manta Rays
The Scientist Staff, The Scientist Staff | Mar 12, 2018
The colossal fish bank like airplanes when turning.
Mysterious Oil Gland Discovered in Swordfish
Mysterious Oil Gland Discovered in Swordfish
Ashley P. Taylor | Jul 6, 2016
When heated experimentally, the secretory organ releases oil through pores on the animal’s head, producing a slick coating thought to reduce drag in swimming fish. 
Esteemed Zoologist Dies
Esteemed Zoologist Dies
Catherine Offord | Jun 1, 2016
Robert McNeill Alexander, best known for his work on animal locomotion, has passed away aged 81.
Squirmy Sperm
Squirmy Sperm
Kerry Grens | Nov 12, 2015
Scientists observe another form of locomotion for male gametes, akin to a snake’s slither.
Celebrating New Species
Celebrating New Species
Jenny Rood | May 21, 2015
An international panel of scientists selects the 10 most interesting organisms discovered last year.
Behavior Brief
Behavior Brief
Jenny Rood | May 21, 2015
A round-up of recent discoveries in behavior research
Similar Strokes
Similar Strokes
Jenny Rood | Apr 29, 2015
Physics drove the convergent evolution of swimming in 22 unrelated marine species, a study suggests.
Behavior Brief
Behavior Brief
Jenny Rood | Mar 9, 2015
A round-up of recent discoveries in behavior research
The World’s Only Pentaped
The World’s Only Pentaped
Bob Grant | Jul 2, 2014
Kangaroos use their tails as fifth legs.