Many species are on the cusp of disappearing forever, from the Yosemite toad to the cave katydid in South Africa. One of the pivotal tipping points is when a population becomes very small and is geographically isolated. Then, ...
Ecology
Nov 5, 2014
1
0
(Phys.org) —"One thing led to another," people often say. Events, discoveries and relationships are triggered by something previous. The iPhone case was designed only because the iPhone was invented first. A song became ...
Mathematics
Aug 15, 2014
1
0
Everybody knows the shortest distance between two points is a straight line, and now Harvard researchers have evidence that sperm have been taking the familiar axiom to heart.
Plants & Animals
Jul 30, 2014
0
0
A new study led by Adelaide researchers has estimated, for the first time, the rates of evolution during the "Cambrian explosion" when most modern animal groups appeared between 540 and 520 million years ago.
Evolution
Sep 12, 2013
47
0
(Phys.org) —Plants are often described as being in an evolutionary arms race with the creatures that eat them. Plant eaters develop new strategies for attacking, and plants acquire new ways to defend themselves.
Plants & Animals
Jun 24, 2013
0
0
After decades of laboring under other theories that never seemed to add up, a team led by biologist Rama Singh has concluded that what causes menopause in women is men.
Other
Jun 13, 2013
21
1
Although scientists have known since the middle of the 19th century that the tropics are teeming with species while the poles harbor relatively few, the origin of the most dramatic and pervasive biodiversity on Earth has ...
Earth Sciences
Jun 10, 2013
0
0
(Phys.org) —It's not always easy to tell if a fish is male or female: they look more or less the same. But there are exceptions, such as guppies and, as with humans, guppy genitalia varies in size across the species.
Plants & Animals
Jun 3, 2013
0
0
Humans, like other animals, compare things. We care not only how well off we are, but whether we are better or worse off than others around us, or than we were last year. New research by scientists at the University of Bristol ...
Plants & Animals
May 30, 2013
2
0
Environment is not the only factor in shaping regulatory patterns—and it might not even be the primary factor, according to a new Rice University study that looks at how cells' protein networks relate to a bacteria's genome.
Cell & Microbiology
May 21, 2013
0
0
