The evolution of the amniotic egg—complete with membrane and shell—was key to vertebrates leaving the oceans and colonizing the land and air. Now, 360 million years later, bird eggs come in all shapes and sizes, from ...
Evolution
Jun 22, 2017
2
172
(Phys.org) —A team of researchers working in China has proven that the three-keeled pond turtle embryo is capable of moving itself towards or away from a heat source in order to warm itself or cool down. In their paper ...
(PhysOrg.com) -- Researchers at the University of Warwick and the University of Sheffield have applied computing power to crack a problem in egg shell formation. The work may also give a partial answer to the age old question ...
Materials Science
Jul 9, 2010
11
0
Athletes often suffer injuries to ligaments in their knees, particularly to the anterior cruciate ligament or ACL. While surgery to replace these torn ligaments is becoming increasingly common around the world it often needs ...
Cell & Microbiology
Feb 14, 2024
0
40
A new paper in Genome Biology and Evolution indicates that a type of octopus appears to have evolved independently to develop something resembling a shell, despite having lost the genetic code that produced actual shells ...
Plants & Animals
Oct 26, 2022
0
866
A team of researchers affiliated with several institutions in China and Canada has identified a turtle egg fossil from the Cretaceous period that contains an embryo. In their paper published in Proceedings of the Royal Society ...
A team of researchers from Universidad de Granada and Estación Experimental de Zonas Áridas, both in Spain, has found that male hoopoes provide more nourishment to female mates who paint their eggs well. In their paper ...
In many animals, males pursue alternative tactics when competing for the fertilization of eggs. Some cichlid fishes from Lake Tanganyika breed in empty snail shells, which may select for extremely divergent mating tactics. ...
Plants & Animals
May 24, 2018
0
43
How is it that fertilized chicken eggs manage to resist fracture from the outside, while at the same time, are weak enough to break from the inside during chick hatching? It's all in the eggshell's nanostructure, according ...
Nanomaterials
Mar 30, 2018
0
205
Australia is renowned for once being home to a group of gigantic birds known as the mihirungs. These birds are distantly related to waterfowl and included the impressive Dromornis stirtoni, the largest bird ever known on ...
Archaeology
Jan 14, 2016
0
205
