Parents, you might know the feeling. When kids get pushy and demanding, it's a tempting fantasy to shove them out of the house and let them survive on their own. Of course, we'd never put our babies in harm's way, but according ...
Plants & Animals
Nov 16, 2020
1
133
(Phys.org)—Over long spans, biodiversity is a fluid and shifting balance of species and influences. Species diversification occurs in response to a host of complex factors, both biotic and abiotic, and understanding them ...
Any multicellular animal, from a blue whale to a human being, poses a special difficulty for the theory of evolution. Most of the cells in its body will die without reproducing, and only a privileged few will pass their genes ...
Cell & Microbiology
Dec 15, 2011
7
0
Penguins that died 44,000 years ago in Antarctica have provided extraordinary frozen DNA samples that challenge the accuracy of traditional genetic aging measurements, and suggest those approaches have been routinely underestimating ...
Evolution
Nov 10, 2009
16
0
Paleontologists can still hear the echo of the death knell that drove the dinosaurs and many other organisms to extinction following an asteroid collision at the end of the Cretaceous Period 65 million years ago.
Archaeology
Feb 5, 2009
0
0
Sharks have been populating the oceans for about 400 to 500 million years. While our planet and many of its inhabitants have undergone massive changes several times during this period, this basal group of vertebrates has ...
Plants & Animals
Oct 23, 2023
1
196
New research shows that brain development in humans and other primates is closely linked to skeletal development, a finding that creates new avenues for studying the evolution and development of the human brain.
Evolution
Jan 10, 2023
0
105
The high mortality in the early stages of life is a common phenomenon in fish and other species, but it is little studied due to its complexity. A study by the University of Barcelona and the Center for Advanced Studies of ...
Ecology
Dec 21, 2022
0
109
We do it every day but barely give it a thought: chewing our food. But the "simple" process of masticating food may have played a crucial role in the evolution of our jaws, facial muscles and teeth.
Evolution
Aug 17, 2022
0
42
The reaction of narwhals to the loud noise from seismic air guns used in oil exploration involves a disruption of the normal physiological response to intense exercise as the animals try to escape the noise. The overall effect ...
Plants & Animals
Jul 8, 2022
0
151
