Why are there no animals with three legs?
If "Why?" is the first question in science, "Why not?" must be a close second. Sometimes it's worth thinking about why something does not exist.
If "Why?" is the first question in science, "Why not?" must be a close second. Sometimes it's worth thinking about why something does not exist.
Evolution
Oct 2, 2019
3
489
Attracting mates with showy displays may have helped dinosaurs develop feathers that let them take flight, according to new research by University of Alberta paleontologists.
Archaeology
Aug 2, 2019
0
924
A team of researchers at the University of Ghent has found evidence that suggests birds with white wing feathers close to the body and black wing tips get increased lift from their wing colors. In their paper published in ...
In a major step toward developing portable scanners that can rapidly measure molecules in pharmaceuticals or classify tissue in patients' skin, researchers have created an imaging system that uses lasers small and efficient ...
Optics & Photonics
Jul 24, 2019
0
170
Examining fossilised pigments, scientists from the University of Bristol have uncovered new insights into blue colour tones in prehistoric birds.
Archaeology
Jun 25, 2019
2
3
New research, led by the University of Bristol, suggests that feathers arose 100 million years before birds—changing how we look at dinosaurs, birds, and pterosaurs, the flying reptiles.
Evolution
Jun 3, 2019
0
778
Feather mites help to remove bacteria and fungi from the feathers of birds, according to a new study by University of Alberta biologists. In fact, the relationship between these mites and their hosts could be considered mutualism, ...
Ecology
Mar 28, 2019
0
7
The ~125 million-year-old Early Cretaceous fossil beds of Los Hoyas, Spain, have long been known for producing thousands of petrified fish and reptiles (Fig. 1). However, researchers have uncovered an extremely rare, nearly ...
Archaeology
Mar 22, 2019
0
192
When naturalist Charles Darwin stepped onto the Galapagos Islands in 1835, he encountered a bird that sparked a revolutionary theory on how new species originate. From island to island, finches had wildly varied beak designs ...
Evolution
Mar 5, 2019
2
1677
Feathers evolved in dinosaurs and are a key characteristic of birds today. They are arranged in a precise hexagonal pattern in a bird's skin, but it has been unclear how this happens. According to a new study published February ...
Cell & Microbiology
Feb 21, 2019
0
135