Researchers who examined family genealogies from Finland found that the presence of same-sex elder siblings increased the probability that people would disperse to new lands, whereas having opposite-sex siblings had less ...
Evolution
Jul 25, 2016
0
9
Over 90 per cent of mammal species were wiped out by the same asteroid that killed the dinosaurs in the Cretaceous period 66 million years ago, significantly more than previously thought.
Archaeology
Jun 20, 2016
0
931
Males who evolve in male-dominated populations become far better at securing females than those who grow up in monogamous populations, according to new research into the behaviour of fruit flies at the University of Sheffield.
Plants & Animals
May 5, 2016
1
324
Females can enhance the survival chances of their offspring by mating with multiple males. When it comes to immunological benefits, however, female promiscuity may not provide the young the advantages long suspected, as a ...
Evolution
Apr 15, 2016
0
4
New research looks at the evolution of an altruistic defense by enslaved Temnothorax longispinosus ant workers that rebel against their social parasite Temnothorax americanus, a slavemaking ant.
Plants & Animals
Mar 21, 2016
0
7
Many insect species respond to danger by producing chemical alarm signals, or alarm pheromones, to inform others. In a recent study, investigators found that their alarm may be even be context dependent.
Plants & Animals
Mar 16, 2016
1
4
Female burying beetles are more attracted to small partners because they are less likely to get into fights, a study by researchers at the University of Exeter has found.
Plants & Animals
Jan 8, 2016
0
800
Male fruit flies could find their chances of fathering offspring radically reduced if they are last in the queue to mate with promiscuous females before winter arrives, according to new University of Liverpool research.
Plants & Animals
Nov 24, 2015
0
8
For a beholder who is an evolutionary biologist, the eye is has long been a fascinating puzzle because of the many parts that must seamlessly work together for the whole to work properly. Biologists have addressed the question ...
Evolution
Nov 20, 2015
0
1270
(Phys.org)—Many intuitions drawn from our machine world do not smoothly extended to the biological. Whereas the screws or other fasteners used in an automobile typically tend to loosen over time with use, the hardware found ...
