Latest analysis shows that human limbs share a genetic programme with the gills of cartilaginous fishes such as sharks and skates, providing evidence to support a century-old theory on the origin of limbs that had been widely ...
Evolution
Apr 19, 2016
1
287
Your best guess is that the landscape is as inhospitable as it gets: An irregular range of sharp boulders and loose rubble piles strewn among jagged crevasses and deep troughs of dust. But then again, it's just a guess because ...
Space Exploration
Feb 8, 2016
5
1380
Hopping, tumbling and flipping over are not typical maneuvers you would expect from a spacecraft exploring other worlds. Traditional Mars rovers, for example, roll around on wheels, and they can't operate upside-down. But ...
Space Exploration
Sep 4, 2015
0
86
(Phys.org)—A small team of researchers with affiliations to the University of Florida and Howard Hughes Medical Institute has found that clasper development in skates is controlled by hormones that regulate the Sonic hedgehog ...
A new process that can sprout microscopic spikes on nearly any type of particle may lead to more environmentally friendly paints and a variety of other innovations. Made by a team of University of Michigan engineers, the ...
Materials Science
Jan 28, 2015
0
23
(Phys.org) —Stem cells switch off and on, sometimes dividing to produce progeny cells and sometimes resting. But scientists don't fully understand what causes the cells to toggle between active and quiet states.
Cell & Microbiology
May 9, 2014
0
0
In most tetrapods (land vertebrates) the fourth (ring) finger is the first to develop in the embryo. And in birds, the finger on the outside of the hand (posterior, the pinky side) appears first, which suggests that this ...
Plants & Animals
Jan 7, 2014
0
0
The world's oldest scientifically-confirmed European hedgehog has been found in Denmark by a citizen science project involving hundreds of volunteers. The hedgehog lived for 16 years, 7 years longer than the previous record ...
Plants & Animals
Feb 14, 2023
0
29
Regenerating lost body parts is impossible for humans, but cracking the cellular code of salamanders could help to treat serious wounds.
Plants & Animals
Aug 25, 2022
0
31
Robotic lawn mowers running at night have, by some, been declared a great threat to the population of European hedgehogs. Now a recently published study conducted by Dr. Sophie Lund Rasmussen, known as Dr. Hedgehog, and colleagues ...
Ecology
Apr 27, 2021
0
6
