News articles tagged with 'evolutionary'
The bizarre lives of bone-eating worms
— 10 Nov 2009 15:00 | BiologyThe females of the recently discovered Osedax marine worms feast on submerged bones via a complex relationship with symbiotic bacteria, and they are turning out to be far more diverse... — full story
Hormone that affects finger length key to social behaviour
— 5 Nov 2009 13:18 | BiologyThe hormones, called androgens, are important in the development of masculine characteristics such as aggression and strength. It is also thought that prenatal androgens affect finger... — full story
Why do animals, especially males, have so many different colours?
— 3 Nov 2009 11:23 | BiologyWhy do so many animal species - including fish, birds and insects - display such rich diversity in coloration and other traits? In new research, Gregory Grether, UCLA professor of ecology... — full story
Ancient 'monster' insect offers Halloween inspiration
— 28 Oct 2009 12:21 | Geology and palaeontologyJust in time for Halloween, researchers have announced the discovery of a new, real-world 'monster' - what they are calling a 'unicorn' fly that lived about 100 million years ago and... — full story
Colour differences within and between species have common genetic origin
— 26 Oct 2009 16:31 | BiologySpend a little time people-watching at the beach and you're bound to notice differences in the amount, thickness and colour of people's body hair. Then head to the zoo and compare people... — full story
Why sex with a partner is better
— 22 Oct 2009 07:49 | BiologyOK, it takes two for human reproduction, and now it seems that plants and animals that can rely on either a partner or go alone by self-fertilisation give their offspring a better chance... — full story
Like humans, monkeys fall into the 'uncanny valley'
— 14 Oct 2009 12:01 | BiologyPrinceton University researchers have come up with a new twist on the mysterious visual phenomenon experienced by humans known as the 'uncanny valley.' The scientists have found that... — full story
Self-sacrifice among strangers has more to do with nurture than nature
— 13 Oct 2009 10:15 | HealthSocially learned behaviour and belief are much better candidates than genetics to explain the self-sacrificing behaviour we see among strangers in societies, from soldiers to blood... — full story
Trackway analysis shows how dinosaurs coped with slippery slopes
— 7 Oct 2009 14:08 | Geology and palaeontologyA new investigation of a fossilised tracksite in southern Africa shows how early dinosaurs made on-the-fly adjustments to their movements to cope with slippery and sloping terrain.... — full story
U of T led research team uncovers evolutionary origins of prion disease gene
— 29 Sep 2009 17:36 | HealthA University of Toronto-led team has uncovered the evolutionary ancestry of the prion gene, which may reveal new understandings of how the prion protein causes diseases such as bovine... — full story